Walking around outside in bare feet.
Is doing a bit of public sole-baring considered 'daring' where you're from? You retreat back inside like you're scared of being caught doing something wrong! Here in Australia it's not that unusual (depending on where you are), probably because of the strong beach and surf culture. True, a lot of people say that Australians tend to be a bit too laid-back! Hey - 'no shirt, no shoes - no problems!', (as long as it's by choice). Keep on barefootin'!
show your soles after the walk!
No dirty soles. Maybe some time when they're fresh.