You folks are the best!!!!!
Thanks so much for all the help, toostsie rolls for all. I'm off to the FR-less wasteland known as "work" so I won't be able to report back until later tonight, but so far the results are interesting and unexpected. That's a good thing. Based on a very small sample (two!) she hypothesized that lefties would put right thumb on top and righties would put left thumb on top.
I think the judges love it when you can't prove your own hypothesis so this is a good thing.
So far more righties put left on top and more lefties also put left on top. But I don't think either data set is going to be statistically significant. In other words, I think it may be random or another unknown factor may affect it.
But that's for her to figure out in the next few weeks. I'll do my own analysis tonight and compare FReeper results to her other 200 or so subjects.
Thanks again everyone!
Right handed and right thumb on the top. Have fun!