Okay so I wen't to follow my friend Airmist
Then I wen't to his utility then he wasn't there.
Is this a bug?

Perhaps your on different servers?

If that's the problem, you need to make an international room. Just add a '*' to the start of the room you want to be international.

No we were in the same room but I did not see his name on the list or his mouse

THAT BUG NEVER FIX XD