Q: One classic use for smirks is to show that something you're saying (or that you've just said) is intended sarcastically. For instance, you might adopt a subtle smirk after giving out effuse, ironic praise to convey that your previous remarks weren't 100% sincere. Smirks are somewhat confusing because they're used both to display sarcasm (as above) and to display actual, genuine amusement (albeit in a muted way). A smirk after hearing a good joke can be a silent, controlled way of showing that you found the joke somewhat funny. Conversely, a smirk after hearing someone make a good point during an argument can be a tacit admission that s/he is correct. Of course, in both of these situations, sarcasm also is a possible response, so it's crucial to have a keen eye for the context of the situation. Somewhere between sarcasm and amusement lies smarminess - a sort of detached, arrogant sense of enjoying one's self. Unsurprisingly , smirking can be used for this emotion as well! For starters, try smirking as you make a biting joke about someone to his or her face (in good fun, of course) or smirking as you list your own wonderful qualities.
A: Smirk to convey sarcasm. Smirk to convey amusement. Smirk to be smarmy.

Article: Properly inflated tires can reduce fuel consumption by up to 3%. Your tires also lose about 1 PSI per month, and when the tires are cold (e.g., in the winter), their pressure will decrease due to the thermal contraction of the air. It is recommended to check tires at least monthly, preferably weekly. Having properly inflated tires will also help you avoid uneven wear on the tread. Some fuel stations have automatic air compressors that stop at a predetermined level. (For safety, double-check pressure with your own gauge, especially if another is suggesting you add a surprisingly large amount of air.) Small permanently-installed valve-stem extensions can allow filling without removing the caps, but check that they are not prone to jamming with foreign matter and leaking. Recommended inflation pressures are for cold tires; it is best to inflate first thing in the morning or you've driven less than two miles so your reading will be accurate. If you have been driving around for a while or it is hot outside, add 3 PSI. Inflate to the pressure recommended by your car's manual or the sticker on your driver-side doorpost. Be aware that the reading stamped on the tire is the maximum tire pressure, not the recommended. A properly tuned engine maximizes power and can greatly enhance fuel efficiency. Beware, though, that many tuners will disable efficiency measures when tuning for power. Be sure you are keeping good spark plugs in the engine, changing the oil on time, making sure the air filter is clean, etc. A dirty filter will reduce fuel economy, or make the engine stall when idling. Just like mowing dusty grass, driving dusty dirt roads will clog the air filter: avoid dust clouds. This will go a long way to enhancing fuel efficiency. Get the lightest car that will serve your needs. Weight is one of the biggest causes for loss of kinetic energy in non-hybrid cars. If you're not shopping for cars, then take any extra weight off of the one you're already driving. If seats that you don't use can be removed, take them out. If you use your trunk as a storage space for heavy things, find another place for them. An extra 100 pounds increases fuel consumption by 12%. (Weight is most important in stop-and-go driving. In almost exclusively highway driving, it matters little: once the car is up to speed, it need only push air out of the way.) Don't remove things from the car that you need frequently; instead, make sure these are in the car and readily accessible because wasted trips to retrieve or replace them will be much worse than a little lower mileage. Narrow tires have less frontal area, thus reducing aerodynamic drag. Remember, however, that narrow tires have less traction as well (which is why race cars have such wide tires). Do not get a tire that is incompatible with your wheels (use the size tires that came stock on the vehicle), and do not get smaller wheels unless your manufacturer approves. These can increase fuel economy by a few percent. However, the difference is not startling or a substitute for proper inflation. It would be wasteful to replace the former tires with these before they are worn out. Often the "check engine light" coming on is an indication that there is a problem with one of these components. A damaged oxygen sensor may cause your car to have too rich of a fuel mixture, decreasing your fuel mileage by 20% or more.
Question: What is a summary of what this article is about?
Set the car tires to the proper inflation. Tune up the engine. Check the condition of your engine air filter. Replace the fuel filter according to the car manufacturer's recommended schedule. Lighten your load. Select the narrowest possible tires for your vehicle that will satisfy your driving style and demands. Select low-rolling-resistance compound tires. Make sure the oxygen sensors, engine emissions system, and evaporative emissions control systems are in good shape on fuel-injected cars.

Q: If you've been issued this type of government ID, you have to use it in order to register to vote. If you don't have a Colorado driver's license or identification card, you can still register by providing the last 4 digits of your Social Security number. Make a photocopy of this ID if you plan to vote by mail. You may be required to submit it along with your mail-in ballot. You only need to be at least 16 years old to register, but you must turn 18 by Election Day in order to vote. It's fine if your 18th birthday falls on Election Day itself, as long as you'll be 18 years old when you go to cast your ballot. You can register to vote at any point after you turn 16; there doesn't have to be a specific election that you intend to vote in in order to register. by Election Day, if necessary. You have to be an American citizen in order to register to vote in Colorado. If you have birthright citizenship or you're already naturalized, you can skip this step. You don't need to live in any specific precinct or area; you just need to have been a Colorado resident for 22 days. Note that this 22-day period must be the period immediately before the election. For example, if an election were taking place on January 23, you would need to have lived in Colorado from January 1 to January 22. You'll have to wait until you're no longer incarcerated before you can register to vote. You can register if you're currently on parole, but you won't be able to vote until you've completed your sentence. If you were previously registered and then were sentenced to incarceration for a felony conviction, you'll have to re-register to vote. You can still register to vote if you're only in jail for a misdemeanor sentence.
A:
Check to see if you have a Colorado State driver's license or ID card. Make sure you'll be 18 years old by the date of the election. Become an American citizen Reside in Colorado for 22 days before the election. Note that people in prison for a felony conviction are ineligible to vote.