Show confidence and then badly sing my worries away... *warning, really bad singing and some cuss words*

If they and another friend DC's, just sing a song ensuring victory. Sweet sweet victory! *More bad singing and more cuss words*

Works every time and I usually make friends along the way.

Oh yeah, moral of the story, keep calm and it's only a wipe when everyone dies. This works in any kind of content. Panicking is the best way to make the wrong move so simply do what you were doing and adjust when need be. Also don't be afraid to take criticism, it's the best way to become a better player. <3