dont go over there that could creep them out if you just met her, just play it cool and when you do talk to her or the roommate leave a message if you have to saying something to the effect of you were thinking about being at the wherever and it would be cool if she came along, try and pic a high traffic area so she doesnt feel like your gonna put the moves on her as soon as you see her, while im sure she wants to kiss you again she at the same time doesnt want to feel like a slut either. so try and arrange some type of get together that is relatively safe for her, then you could always bounce to somewhere else, but dont invite her over to yourplace right off the bat for instance.
try not to call to often either cause this will convey that you are desperate and needy, just be cool and patient, especially if she has your number, she will call you.
if you do get another meeting with her, you need to realize that the fire has burned out from the other day, so dont just go for making out time, you will need to rekindle the fire by being cool and patent try some flirting and try to insinuate things.
this is just my opinion, i hope i helped
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