1. Listen to stuff such as Blink 182, or even Busted and McFly, and show off about it like it's so cool and makes them so special.
2. Vanadalises their school bag and sticks loads of mini badges on it.
3. Wears loads of colourful plastic jewellery.
4. Tends to wear black and then a very bright colour clothing.
They do it to be "cool" and it's not amusing.