We always do this as we're approaching the CM loading vehicles, so I didn't think much of it until this last trip, when a CM at SE said "I wish everyone would do that!".
The first person in our group holds up their fingers with the number of people in our party (they almost always ask), so if we have 4 or 2 or 6, there's the visual as well as verbal.
The first person in our group holds up their fingers with the number of people in our party (they almost always ask), so if we have 4 or 2 or 6, there's the visual as well as verbal.