Well, you don’t have to expose yourself to get attention from guys. Being friendly and approachable will work just fine and will leave your dignity and self-respect in tact.
This post, What Pheros Can and Can’t Do, is a really good read. Pheros are not magic, and they won’t override a person’s will. They can, however, make communication and attraction easier at the appropriate place and time.
At you age, Androtics Instant Shine or Openness would probably work great for you. Instant Shine makes people around you feel great and receptive to you. Instant Openness sparks lots of chatting. If you really want to get to know someone, Instant Honesty boosts rapport and helps deepen your conversations.
Hope this helps. I’m sure more experienced users will chime in.