most really hot girls fall into 2 camps
1. the bitch blocker. shades, cell on their ear, head up DONT TALK TO ME-----------!
2. dumb hor type who is prolly not into you but just nice, or she is a tease
3. find out if they put out fast, if you are a bar, try to sit close and touch, if you can drink and have your hand on her back = its a start