Is there any rule of thumb how to analyze whether a person acts "needy"? Or is there any guide on the forum that would cover this?

I am not very available (got tons of hobbies and friends) I keep contact initiation on 50 50.

What I try to do is not expressing my feelings to a girl before she does that (I saw it in several posts here already). However, with current girl she doesn't initiate the "I missed you" talk herself (most probably I am just rushing the situation). When I said I was looking forward to see her after her trip, only after that she said (and after sex) she missed me also and she was horny for me blablabla. By initiating that kind of talk myself I feel that I am going to the "neediness zone", however it still seems ok, because it was kind of a trigger for her to express feelings to me.

Dont get me wrong, I do not have a urging need to hear her saying she loves me or anyting - I am quite comfortable with fucking the HB10 right now. However, I want her to be into me as much as possible and also I do not want to make some very bad move by being the oposite of needy (disinterested - if that is possible at all).

Is this recommended approach to try to lead her into such a talks? Or is it better to just not express feelings at all (thus eliminating risk of looking needy and eliminating possibility of looking like I want some validation), give her space, and she will eventually do it herself?