Kissed on third date, how should I act on the fourth?

So off on a fourth date today with a girl I've been dating for about a month.

She doesn't drink alcohol so I've found it a little harder than normal to get the courage to kiss her. Finally did on the third date about a week ago and she looked relieved I finally did. She re initiated kissing after I pulled away first so must have been in to it.

How should I act on this date? Is she expecting another kiss again? When I meet her do I kiss on the cheek or lips? I don't really want to take a step back by not if the opportunity arises. There must be some attraction if she's prepared to meet me 4 times right? Because I know if it was me I'd be letting them down gently after the first date if I wasn't keen.

How do I take it to the next level? I guess I'm looking for a relationship but not rush in to things. I'm aware she is probably dating other guys as we met on a dating site and she still logs on. How do I stand out from them?

Thanks all.

Kissed on third date, how should I act on the fourth?
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