Experiment

Hey everyone! So, I know this may sound a little strange, but I am conducting an Experiment here. All you have to do is tap your fingers on your lap or a desk (like when you're thinking or when you're nervous, that kind of tapping.) then I want you to tell me which finger you started with, your pinky or your pointer finger. It's that easy! I'm still in the process of figuring out my variable as to why some people do it with their pointer finger first or their pinky. At first I thought it was because it was a female thing to do it with your pointer first, but then my Mother-in-law and sister-in-law kind of threw that idea in the dump! jk! Then I thought maybe it was a short hair thing and a long hair thing, but then my sister ruined that one! Then I thought it was just genes, if your parents both start with their pinky then all the kids will start with their pinky but then my other sister-in-law Andrea, ruined that one! :) So now, I have no clue what my variable could be now?? Any Suggestions or ideas?? It's driving me crazy! I have to figure out why!
p.s. thanks for participating :)