The right time to kiss. I'm not exactly sure. I need good female input on this one. Thanks :)?

I met this girl petite feisty (lol) blonde/spanish girl about 2 months ago, being that we both attend the same university. We've been going out on a few casual mini dates, & we have our similarities and distinct qualities that we both appreciate, so I know she enjoys my company..but every time we seem to part I'm not sure of what signs to pick up that indicate a that she wants a kiss. (Yea pretty common w/ us male species lol). So ladies, what are things you usually do to let us know it's on. :P??