Toes n' Feet!!!
Basically I do like Molson said, find the spot that drives them wild. I really do like tickling bare feet that are nice and moist fresh out of shoes, I find that for most people that haveing their feet tickling is torture! That is FOR SURE my favorite spot to be tickled, I love the feeling of having my extremely sensitive bare feet completly out of my control and mercilessly tickled. I don't really care about stomach and ribs, sometimes I like having my chest/breast area tickled, but I don't really like having my armpits tickled, never really have. The biggest thing that turns me on is plain out foot tickling!