I got a wii and the wii fit for my b'day last weekend - great present. I haven't had a chance to use the wii fit yet but I've had lots of fun doing the wii sports game. When doing aerobics etc on the wii fit do you were shoes (joggers) or do it bare foot? I havent unpacked the wii fit yet, so I guess it will probably tell me everything I need to know once I do?