First time meeting HOW DO I ACT????

So I’ve been talking to this guy for 4 months and around next month we plan to meet. We are meeting so late due to lifestyle/ distance and the virus. We talk about any and everything, I feel like I know him so well and he knows me so well. We talk everyday, and we talk about really interesting topics we both love to talk about.

My problem is what if we have nothing to talk about when we meet because we have discussed so much😭literally I know his life he knows and he knows mine, we talked about everything about us, wider topics and everything in between.

Any tips?