Put it this way: if she doesnt want a kiss by the second date then shes either a). Not interested b) playing games or c) v uptight about "being respected"
so really at that stage you cant "blow it" so you risk nothing. Kiss her, dont kiss her. Either way your getting rejected. If shes interested she will kiss you
for c above: some women expect you to work hard to prove your not this or that blah blah blah and there not worth it coz they have deep rooted trust issues and insecurity prob coz they have horrible taste in men and any new man will pay for past bfs mistakes
basically if shes not kissing you back-just forget her