You are emo if you:
- have horn-rimmed or thick black frame glasses,
- wear undersized t-shirts and tops, especially stripy ones,
- wear Converse shoes,
- wear makeup (especially black, neon pink, red, purple),
- have dyed hair in a fringe that is spiky-ish, especially if the hair partially or completely covers one or both eyes.
Emo fashion is at once a celebration of your archetypal nerd's sense of 'fashion', the punk aesthetic, as well as healthy does of goth and '60s' mod.