Kissing != making noise. Maybe you need to consider paying more attention to how your actions affect others in public spaces
1) You seem to be unaware of the fact that many people in the world feel personally affronted by public displays of affection. I think it's weird to not be aware of that, but man I wish I lived in that world because it seems a lot nicer than mine. The point is that their affrontery is theirs to own, not the other person's.
2) Also, I literally said you can imagine the kissing making noise if you want.
3) Also, so what. Replace kissing with literally any verb you want. It doesn't change anything, because the kissing isn't the point; the relationship between experiences and emotions is.
You know how you just implicitly asked me to give you an example of one even though you asked me only a yes/no question? And you know how the most charitable interpretation of that request is that you actually want to better understand my position and not snidely imply that I don't have one? Well my answer to you is "Go fuck yourself. You aren't worth my time." (sorry, this is an example)