my advice just do it i mean if a lad makes the effort to come over to me in a bar i will give them time and talk to them unless they are a total wierdo iv met a few and your quite a good looking guy im sure girls wont mind chatting to you it doesnt have to be anything more,i know there are a few girls tho who would knock yoou back but in the end they arnt worth talking to

be brave and do it!
it's such a turn on and plus point if a guy comes up to you...
and if the girl doesn't appreciate it then she's not worth your time anyway