Most Helpful Guy
I think of a kiss as light and compassionate lasting no more then 2 or 3 seconds. It can include tong depending on how it's used; no tonsil hockey, but a gentle touch of tongs doesn’t fit my definition of making out.
When I think of making out, eagerness comes to mind… prolonged contact lasting over 3 seconds.
Those are narrow minded definitions of a kiss in my opinion but it's all dependant on the feelings passed between the couple when they do it and how they express themselves while kissing.