Counter-clockwise. I've always done that. Even when I draw circles (e.g. the number zero or the letter O) it's counter-clockwise. I believe counter-clockwise means you're left-brain dominant, and clockwise means you're right-brain dominant?

Also, this reminded me of the spinning girl test. B)

[Though when it comes to that spinning girl I sometimes see her spinning clockwise, and sometimes counter-clockwise.]