
1. Dress: The absolute first impression you will make on someone will be through your clothing, because that is what is seen from a distance, and cannot change throughout your meeting. Make sure to dress according to the situation-don't over or under dress-and maintain within the limits of good taste. If you aren't sure if what you're wearing looks good, ask people for an honest opinion. One last thought: always, and I mean always, pull up your pants.
2. Hygiene: Take a shower! Shave! Brush your teeth! You must be fully bathed and groomed before you meet with someone for the first time, because scruffy looking people generally don't seem as neat and mature. Pay attention to the little elements like breath: keep a pack of mint gum with you wherever you go, and periodically check to make sure you aren't killing bugs every time you breathe out. If you sweat heavily, keep a small stick of deodorant/anti-perspirant close, and if you notice you're stinking you can freshen up. People notice the minutiae! 05 more after the break...