If they could be pointing at something on the ground while turning to talk to each other that would fit nicely in scenes for someone tracking, looking at foot prints, ect. I'll add the Footprint addon this week.
In its current state, no part of the puppet is "locked", apart from the legs and torso, so you may use the "look at" and "point at" generic actions for that purpose. Of course, it's not guaranteed that pointing at some things will work properly, depending on its relative position to the puppet, and that a specific gesture for this posture would be the the solution.
What I can tell you for sure is that one of the things I have planned is a series of animation for one puppet assisting another one lying on the floor, assessing her general physical status, and acting upon her. So far I have only a general idea but have to work out the details.
I can see it in a dark comedy about Dentists or high pressure AMWAY sales people.
You don't love them, I guess. I met one of them in the past, but she didn't dare to bother me: I think the expression on my face was eloquent enough.