It will come naturally if you are turned on enough. Relax and enjoy.
I can believe that no kid has answered this question yet. Do whatever the hell you want when you're videotaping yourself. I would like a better idea! Dude, do something epic like a FAIL or something?...
No one fricken cares. We suck!
You can stay awake by poring water on your face. or injecting a energy drink in your main artery in your leg. ( not recommended to do! )
Drink lots of water.