How to build intimacy with my friend?

So I and this girl have been friends for a while now. I recently have developed feelings for her. Anyways we hang out often and are even paired together in a group project. Hence I probably will have plenty of time with her, the only problem is that I am unsure how do I build intimacy in this relationship and be more than just friend?

How to build intimacy with my friend?
How to build intimacy with my friend?
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