Honestly, it's either nut up, or shut up. Girls like men to be forward, at least a bunch of my girl friends do. I certainly love a guy to be forward, unless they're being creepy about it. I like when a guy is honest with his feelings towards me. If they like me, and I like them back... cool, but I'm not looking to get into a relationship. If it happened, though, sweet, but right now? Nah. If I don't like the guy, I just tell them I'm not looking for a relationship, which is true. A lot of guys get all pissy about it, but I'm really not looking to get into anything serious. But I digress, just be honest, don't be texting or messaging them every second. Give her space, and let her see what she wants. Shit works out eventually.
AND DO NOT, DO NOT LET ANYONE LEAD YOU ON. IF THEY TRY THE "EHHHH" EXCUSE MORE THAN ONCE WITHOUT AT LEAST KISSING YOU, FUCK THAT SHIT.