Do you whistle while you work?

Kind of a generic phrase, for whistling see singing or humming or whatever.What i’m trying to ask is,when you’re alone & busy or concentrated at whatever you may be doing.What little quirks do you display?Maybe you drum your fingers ,tap your feet or any of the above.Perhaps you’re not aware of this,maybe you do none of these things.All answers welcome in any case,even the dwarf references & yes it was intentional.