| Dresscode | Geek version | The rest of the world |
|---|---|---|
| None | Dressing gown; underwear; nothing; |
Trackpants, tshirt, and sneakers |
| Casual | Trackpants, tshirt | Jeans, tshirt or collared shirt |
| Business casual | Jeans, tshirt | Chinos, collared shirt |
| Business | Chinos, collared shirt | Suit and tie |
| Semi-formal | Nice pants, nice shirt | Dark suit and tie |
| Formal | Suit and tie | Tux (”black tie”) or tails (”white tie”) |