I start off by saying "I'm piiissed." Then my voice gets obnoxious, and a bit higher, and I start expressing my desire to kick random objects. This is if I'm around people I know.

If by myself, I blast music and play video games, sleep, or call somebody and vent.

If in a room full of people I don't know, I stay quiet and clench my fists and bite my lip to keep from raging at some poor innocent soul.