What to expect?

Hello,

A girl invited me to come to her place Saturday night for “wine and cheese”.

I originally met her randomly at at friend party.
We exchange contact number and I actually went to lunch with her two times.

Does it mean she likes me?
I was not really thinking about anything until now, ‘cause I feel she is way to pretty for me…
And I never been to a girl appartement before… so not sure how to “behave”…
Especially that she told me she has two roommates.

Should I ask her for a date?
Or I need to wait bit more?

Thanks
What to expect?
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