getting a bit off-topic here, eh?...
I would guess that Mrlover is joking around here... hoping, anyway
to answer the original question:
my dom personality shows most strongly when someone gets me riled up, threatens people i care about, or challenges me in such a way that i want to take charge and just crush the opposition.. (in a manner of speaking :P)
sub personality shows only when the right people are around, usually with people I have known for some time, and trust.
and overall, i'm just an easygoing person... I'm a student.. living at home. so I don't usually have to make many decisions. where I work, I'm just your average fast-food server. Most of my life seems to be a rather sub-type of life, nothing that I really have to control.