Physically probably my stomach or my hair.
Ye gods, I thought that said stomach hair for a second there
I considered going with hair too as I have good hair (or so my lovely hairdresser says) but then I wondered whether it's really a 'feature' if I have to spend a few minutes in the morning brushing it and working wax into it to make it look nice otherwise I am just a big fuzzy ball of hair which doesn't look that great.