I'm a talker, but I hardly ever state "shooters number" when I have a foul. (Shooters number seems to find its way back to my lips and hands when I report to the table!)
I do get frustrated when it feels like a partner's primary communication mode resembles charades, or pictionary in the air, or some kind of "silent mouthing" that requires both lip reading and interpretation of hand/arm movements. This leaves me (and I assume most others) wondering about the call--especially what we do next!
As officials we have to take 100% of the responsibility for both giving and receiving information. We all know what "assuming" does for us.....