If you are intent on using German for tidbits, include the translation in parenthesis so everyone knows what you mean anyway. So, I'd say something like:
"Heb deine Handy auf!" (Hold up your hand-held radio!)
Just so it's clear to everyone.
[8:32:45 PM] Dusty Lens: Oh no, let me get that. Hello? Oh it's my grandma. She says to be roleplay.
[12:49:19 AM] Elgatodiablo: You know its nice that you have all that proof and all, Bacon... but I just don't believe you.