How do you keep yourself awake during office hour?

As for me, here's what I'll do:

- Plug in the earphone and blast the music away.
- View funny videos on break.com or youtube.
- Listen to soccer commentary.
- Wash my face in the washroom
- Take the lift to the ground floor and up again.
- Talk to colleagues

If all else fails, I'll just drink some heavy dose of Nescafe.