Most Helpful Guy
She's either thinking of something else, while coincidentally looking your way, or she's telling you " hey you.. yes you there, come at me.. I wanna get to know ya, cmon just do it will ya, sheesh". Starting off with a little "hey" can never hurt, don't really have to start a conversation the first time you talk to her ya know., you've got nothing to loose, + she's sitting alone?.. waaah?, no friends or idiots to disrupt your game plan. Go talk to her... NOW.