Smell
Answer back
Wear baggy, ridiculous looking clothes
Wear hardly any clothes at all
Chew Gum
Spit in the street
Throw litter on the street
Hang around outside newsagents
Swear so much in a loud voice
Do everything in a loud voice
Wear trainers ALL the time
Wear hoods over their baseball caps
Have more than one mobile phone
There are probably more, I just thought it would be fairer on the old people if someone slagged off young people too. And it's sooooo easy to do!