Having a friendly expression is the first step in putting your friend at ease. Have a nice, relaxed, and genuine smile that doesn't look forced. Having a body posture that suggests you are truly interested in someone lets him see how nice you are being to him. Sit leaning slightly forward with your arms casually at your sides. Crossing your arms gives off an appearance of being guarded and closed. Be present in your conversation, ask questions to show you are interested and listening, and your friend will sense you are a person that he can really relax, trust, and talk to. People just really want to be heard. Asking questions about the people you are with makes the other feel special. Look at it like a detective game, where the goal is to pick up on clues and cues as to who the other person really is inside. You'll take more interest in him this way, and the person you are talking to will really warm to you. . Good listeners make eye contact for about 75% of a conversation. You don't want to stare, but show you're interested. Look between his eyes and the bridge of his nose, or just slightly to the side at his ear lobe. Although you can't be everything to everybody, you can ask a friend how you appear in social circles and if you seem open and friendly or closed and unwelcoming. You may find that you are unintentionally giving off the wrong vibe. You might think, for example, that your active-listening face shows you are intently paying close attention but an outsider may think you look stern or even angry. Always offering to help people may come from a place of generosity and friendliness but may be accidentally perceived as you thinking that your friends can't do something well enough on their own. You might not know this, however, unless you ask. Guard your emotions, however, and be prepared in case you hear your friend bluntly tell you that you come off entirely different than you imagine.
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One-sentence summary -- Smile! Lean in. Really listen carefully. Make eye contact Ask how others perceive you.

Aerial application is most often carried out using state-of-the-art agricultural planes. These aircraft are specially-engineered to offer greater control at low altitudes while providing maximum visibility, higher spraying rates, and greater carrying capacity. They also facilitate shorter takeoffs and landings. The Rockwell Thrush Commander, Piper PA-36 Pawnee Brave, and M-18 Dromader are a few of the most popular planes among ag pilots. These days, crop dusting may also be performed using gliders, helicopters, or even remote-controlled drones. You may need a separate license in order to operate these aircraft legally. Though it's referred to as crop "dusting," most applications use liquid pesticides and fungicides because they spread farther and more evenly than those in powdered form. Both liquid and powdered protection products are deployed from the nozzles on a crop dusting aircraft. Some planes are even equipped with variable-rate nozzles and onboard computers to monitor dispersal patterns and minimize spray drift. The primary use for powdered chemicals in modern crop dusting is applying sulfur-based pesticides to melons and other large crops. Certain chemicals that used to be employed in crop dusting, such as lead arsenate and DDT, have since been banned after being linked to cancer, liver and kidney disease, and other serious illnesses. You'll typically have the most success in the early morning or late evening, when there's fewer people out and less air traffic to contend with. It's also a good idea to keep an eye on the weather around the time that you set out. Strong winds, for example, can interfere with dispersal (as well as the pilot's ability to fly the plane), while rain can wash away chemicals before they can be effective. The timing of aerial applications can play a major role in overall yield come harvest time. If you work for a large commercial farm or food company, your schedule may be subjected to frequent updates and revisions as weather conditions change. GPS locators make the pilot's job much easier by making it possible for them to apply chemicals with incredible precision. Many advanced systems are accurate to within 3 feet (0.91m), which means you won't have to worry about gaps in coverage or excessive overlap. GPS systems can be supplemented with onboard technologies like aerial imaging, infrared mapping of targeted areas, and fully-interactive electronic displays for even greater efficiency. Improved accuracy means less waste and safer industry standards for both the pilot and the farming community.
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One-sentence summary -- Use an aircraft designed for crop dusting. Familiarize yourself with different chemicals and delivery systems. Determine the best time to apply chemicals. Use GPS technology to guide your applications.

This "truss" is the basic structure of the pyramidal design. Prop two cards together into an inverted "V" shape. The top edges of the cards should meet, and the bottom edges should be evenly spaced apart from a central axis. Spend some time practicing this process. You'll need to repeat it over and over again in the construction of your house. Create a steady line of triangular trusses, two cards each. The point of each triangle should be no more than one card's length from the point of the next triangle. The number of triangles in the foundation determines the possible height of your house of cards: each "floor" will be built upon one less triangle than the floor below. For instance, if you build a three-triangle foundation, you'll be able to go up three "floors" before the house reaches a point; if you build a six-triangle foundation, you'll have more space to build, and you'll be able to go up six floors. Start with a three-floor house. Brace each new triangle against the base of the adjacent triangle. Eventually, you should have three triangles (using six cards, total) that are all touching. Gently lay a flat card on top of the first two triangles (say, 1 and 2). Make sure that the card is perfectly balanced between the points. Now, lay another card between Triangles 2 and 3. You should have a "foundation" of three triangles with two flat cards on top. This takes eight cards, total. If your foundation comprises three triangles, the next "floor" up should use two triangles. Try to stack each new triangle at the same angle as the two triangles below, for the sake of structural integrity. Place the base of each card above the point of a lower triangle. When you have formed these two triangles, lay one flat card on top between their points. Be extremely careful. If you built the foundation well, it should be strong enough to hold up these new cards but you will need to keep from knocking the whole thing over with a tremble or sudden movement. Stack the new cards lightly and cautiously. When you've finished laying the second "floor", your tower should comprise thirteen cards: five triangles and three flat cards. To complete your house of cards, you just need to stack one more triangle atop the structure. Slowly and carefully prop two cards together at the same angle as all of the prior triangles. Hold them in place until they are completely even, and pull your hands away when you feel confident that the point will stand on its own. If the structure stands, you have built a house of cards!
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One-sentence summary --
Form the first triangle. Build the foundation. Brace the triangles. Build the next layer of cards. Add the point.