nobody migrates or is attracted to somebody giving off depressing energy or negative energy.
people migrate, notice, and are attracted towards people with positive energy (aka people having fun, laughing, smiling).
lastly. nobody migrates to that person in the room (boy or girl) who you can JUST TELL they're [URL=http://www.loveforum.net/usertag.php?do=list&action=hash&hash=1]#1[/URL] need is to find a bf/gf right then and there and they'll be frustrated or throw a fit if they don't get one. don't be THAT person in the room.

good luck! (aka.. don't worry about the approaches.. don't play the "compare game".. JUST HAVE FUN and ENJOY and be in the moment... the rest will fall into place.. i promise).