Choosing your seat on an airplane is a big deal.people obsessively check SeatGuru.com before picking a seat or even pay more for a certain position on the plane.why? It's a rare opportunity to have some control over your environment when traveling, explains psychologist and university of Washington professor Jonathan Bricker, Ph.D. that's very singnificant for the travaler.Indeed, ask people whather they're an aisle or window person, and they don't hesitate to answer. (In case you're wondering, based on Exprdia.com customers who indicatad a seat preference, 55 percent prefer a window sest and 45 percent prefer an aisle seat.) So Yahoo travel researched, asked the experts, and picked the brains of freguent fliers to find out what your seat choice says about you.