Following teammates around the map and shooting their shields down, and keeping them alive. That and soundboards of the most irrelevant shit, ever. I also always boot people for betrayals when given the option, no matter what. You know the guy who stands on top of a teammates' Wraith to get teamkilled, or just incessantly shoots an overcharged Plasma Pistol at teammates' vehicles? Yeah, I wouldn't go that far, but it's an option.