See you can get some useful information from e-harmony:
Whether you like it or not, people decide how they feel about you in the first two seconds of seeing you, or hearing you, if it’s on the phone. If they like you, they will unconsciously tend to see the best in you and look for opportunities to say “yes.” If they don’t like you, the opposite is true.
The first thing someone notices about you is the quality and the level of energy you give out. That means your attitude (including your posture). The second thing they respond to is your clothes. In fact, the impact is made so quickly it’s as if they see both things at the same time, and then form their first impressions about you. Your attitude tells people if you are open or closed, charming or alarming. Your posture is an indication of your overall health: humans are hard-wired to seek out healthy mates. Your clothing speaks volumes. It tells people what kind of person you see yourself as. It also can reveal a lot about your socioeconomic status, whether you’re conventional or flamboyant, sexy or modest, trendy or traditional. Take a good hard look at your wardrobe and see if it makes the statement you want.