I do say "Mr. U1, Mr. U2, Mr BNR" and ask "who's talking" at the captain's meeting, but only out of habit b/c all the guys who have mentored me have always done it. Now that I think of it I'm using it as a transitional bridge to get the captains attention instead of just jumping in and saying "You take care of yours and you take care of yours". (and no me saying "Mr" has never made me unapproachable
)
Still after all the fist bumps/handshakes the speaking part of my meeting lasts no more than 10-15 seconds.