So I have a hard time figuring out if these girls at my school are single, interested, etc. I have confidence to talk to them but not enough to be so upfront about it to ask do you got a Boyfriend. So I am curious to know, does showing off your bulge invite girls to flirt with you more/better so that you can see who is interested in you and who is available?
I would guess that like 95% of the time it doesn't help. But I do have one friend who is always talking about who's packing what and always pointing out things like that. She goes really nuts if she sees a guy with an obvious erection. But I'm pretty sure she's an exception to what most girls are like.
I seriously hope you're not serious, cos if you are then you have a lot to learn about women. Your bulge won't impress us, you can only do that, by talking to them, making them feel good, making them laugh etc. Charm and a sense of humour will win us over, not the bulge
It wouldn't invite them to come over. But secretly ;-) it would make them more conscious of their appeal in public.
And if you are one of the handsome hunks, maybe either wait for her to make the move or just romp over to her. As sequinfanrple mentioned talking is the best form to charm her.