If the non-"calling" (requesting) coach is looking at me as I am approaching the table to report, I will give a quick "30 (or FULL), Coach" then report to the table.
When I give the information to the table EVERYONE in the area of the table (and beyond) should know whether it is a 30 or a full. I use proper mechanics and verbalize (very clearly and with enough volume) that information. THis is especially true in a nearly empty gym.