Does It Have to Make a Noise...?

...when you venerate (kiss) an icon, a priest or bishop's hand, etc.?

I don't think so. Some people do, others don't. I don't anymore, and I haven't been struck by lightning yet! In life, some kisses are noisy, others aren't. As in life, I think the important part is lip contact.

Dry lips, that is. No big wet ones for Jesus or the Theotokos or your priest (even if he is cute!); and we appreciate if you blot your lipstick or chapstick beforehand.