Hi motiv,
Well, if it is a compulsion, it is one of the most harmless compulsions I have ever heard of. I guess it only matters if it upsets you or someone else, otherwise it is kind of cute.
We can tell if something is a compulsion if we get upset if we can't do it, or if we have to keep doing it and get upset when we stop.
Does it feel like that for you?
Cheers, Myzen.