INPUT ARTICLE: Article: Most office chairs have a plastic tube over the extendable cylinder. Slide this all the way down or up, until you can see the metal cylinder underneath. You will not be able to adjust the height after this repair, so make sure you have it right. The seat of the chair should be level with your knees when you are standing. If the chair won't stay up even when no one is on it, lay it on its side. If the plastic skirt covers the cylinder at this height, you will need to remove the skirt first. To do this, turn the chair upside down, push the retaining clip at the base with a screwdriver, and pull off the wheels, then the skirt. Slide the wheels back on. Get a " (2 cm) hose clamp (Jubilee Clip) from a hardware store. Loosen the screw on the hose clamp (Jubilee Clip) and pull out the belt end. Wrap the clamp around the metal cylinder, but do not tighten it yet. The clamp will need to be very tight to hold the chair up. Give the clamp a better surface to grip by wrapping a strip of rubber or a couple layers of duct tape around the cylinder. Do this at the highest visible point on the cylinder, Alternatively, scuff up this area of the cylinder with sandpaper. If the cylinder looks dirty or greasy, clean this off first. Slide the hose clamp to the top of the cylinder. Double check that the chair is at the correct height. Pull the hose clamp tight and fasten it by rotating the screw. The chair should now be unable to slide down past the clamp. The built-in height adjustment will still not work properly. If the chair is at the wrong height, move the clamp higher or lower on the cylinder. If the clamp slides off, fasten it over a strip of rubber to improve the grip, or try the PVC pipe method below.

SUMMARY: Slide the plastic skirt off the cylinder. Set the chair to the preferred height. Wrap a hose clamp around the cylinder. Improve the grip of the clamp (recommended). Tighten the clamp as far as possible. Test the chair.

In one sentence, describe what the following article is about: Getting a girl's attention and making an impression is much easier to do when you've surrounded yourself with others. If she sees you as being the center of attention, she may become curious about you, wondering what draws people to you. Try surrounding yourself with friends and getting along with those around you to catch her interest. Try meeting with your friends just before or after the class starts. Be somewhere in the class that she can see you and how well you are engaging with your friends. You might try walking into the class with your friends while you are telling a great story. If you want to make a good impression, it's always a good idea to treat others around you well. Chances are, if a girl is interested in you, she will be judging how you treat other people to get an idea of how you might treat her. Make it a point to show your character by supporting those around you in class. Try complimenting good ideas that come up in class. Avoid saying anything negative or sarcastic to others. Remember to thank others who help you during class. Always speak supportively and kindly to those around you to help make a good impression. If you want to get the attention of the girl you like, you will need to make yourself stand out during class. Sitting quietly and taking notes won't get anyone's attention. It's important to engage the instructor and answer or ask questions to help you stand out and make an impression. Try not to be a show off during class. Answering too many questions might make a bad impression. Make sure your questions are actually aimed at furthering the topic under discussion. Don't make inappropriate jokes during the class. Women are generally attracted to men who appear more dominant and confident. To show how confident you are, you can try to establish your space whenever you are around a girl you like. Simply taking up whatever space you need can be a good way to get her attention. When you sit down, feel free to relax and take up whatever space you'd like. For example, you might try extending your arm over an empty chair that you are sitting next to. Stretching your arms up into the air can be a good idea. Try to avoid being too aggressive or obnoxious. Make yourself comfortable, but not if it means making others uncomfortable. There are few things more attractive than a person who is happy, joyful, and having fun. Whenever you are near a girl that you like and with some friends, it can be a good idea to be open about how much fun you are having. People are naturally interested in sharing in good times with others. Enjoying yourself can be a simple and easy way to make an impression. Talk about an exciting idea or project you and friend are working on. Let your enthusiasm show to help catch her attention. Try sharing a joke with your friends before class starts. Make sure you say it loud enough so she can hear it. Talk with your friends about something exciting you have planned, such as going to a concert or going on a trip. Even though you haven't spoken with the girl you are interested in, you might still learn a few things that she is interested in. Knowing what she likes can help you steer your conversations and actions in a direction that can make an impression. You may have noticed that she was reading a book about a certain artist. You can try asking a question about that artist during your art class to show your interest. Maybe she carries a backpack with her favorite band on it. You might try bringing up that band's genre during a music history course. Try talking about something you know she likes with your friends during class.
Summary: Be the center of attention. Treat others well. Stay active during class. Establish your space. Have fun. Think about what she might like.

INPUT ARTICLE: Article: Exercise is also important to any pet's health. Luckily gerbils are naturally active. Space and bedding for digging are the most important requirements for gerbils. Other items, however, can help. A solid wheel can provide great exercise. If it is not solid, the gerbil can get its feet or tail stuck and hurt itself. A good wheel is one that has no gaps in it but has ridges to use and run on. Also be sure to suspend the wheel off the ground from the wire top, so that it does not take up space in the cage. Pet stores sell wooden chew toys for gerbils that can provide entertainment. An exercise ball is the best way to allow your gerbil to explore the wider world and get a work out. Just beware that your gerbil may not like the confined space so if they show signs of being stressed, take them out immediately and do not put them back in there until they are calm the next day. Gerbils also love cardboard. A cheap way to entertain gerbils is to give them the cardboard center of a roll of toilet paper after you have used it up. When you first adopt your gerbil, it might be too disturbed by its new environment to be friendly. Do not try to pick it up for the first couple of days. You can, however, begin to build positive associations with it by hand-feeding it seeds, a good sign of it trusting you is when it climbs onto your hand and stays there as it eats. If it runs away with the food to a small space or a corner, do not worry because this is natural as in the wild a gerbil will have to fight for it's food. You will want to handle the gerbil often so that it becomes accustomed to human interaction. A happy gerbil will receive daily social interaction. However, you should be careful. Wash your hands before handling. Use both hands to create a big bowl that will support the gerbil. Place your hands next to the gerbil so that it will walk up on to them. Avoid standing directly above the gerbil. It will associate any shadows being cast on it with predators, causing agitation. A pair of gerbils can produce ninety-six pups a year. Those pups will soon begin to produce more babies. Unless you have considerable experience with gerbils, you should verify that you have no mixed sex pairs in your possession. Otherwise you will shortly be responsible for a small army of gerbils.

SUMMARY:
Encourage play and exercise. Take it slow. Handle with care. Do not attempt to breed unless experienced with gerbil care.