It's safer to inch at it, mild flirting, accidental touching, smiling and eye contact. If you want definitely make the first move, though. It tells a lot about yourself.
i feel they guy should make this first move but if you are a girl and confindient enought ask a guy out Ohh come on! That is such a sexist attitude! Why should we guys have to be pressured into...
This is decided by the homefield atvantage theory. If the guy is in his car well its his move. If the girl is driving or the guy is driving her car it is her move. That's just the rules of the car....
Of course it wouldn't be right if you made the first kiss. It's just not right now if you're really desperate then maybe, but other wise don't make the first move!