yes i do it all the time, only to a guy since i a girl haha. but if she likes you then she might get jealous or something so watch out!
You cant "make" somebody like you but you can be attractive enough for them to like you sexually without you knowing.
Some do, with or without knowing the orientation of the male.
act like he is one of your girl friends and try not to come on to strong
Stare at he until she stares at you and then quickly look away.
It probably means that he would like to know her.
It's not possible to make anybody like you. Either they do or they don't. Just be yourself.
You can either do everything you can to convince her that she would be better without him without her knowing that's what you are doing, OR find a girl that is smart enough not to be dating the "stoner jerk" in the first place.
wave at her and do the call me sign
she likes you and is trying to find out wether you like her or not without you knowing she likes you
Be truthful. :)
Not necessarily don't jump the gun. Without actually knowing the entire situation its hard to give a complete yes or no.
It sounds like she wants to change the nature of your relationship. Hard to tell more about it without knowing more.