When presented with problems people are prone to gesture more with the increasing challenges of those problems. The more ways there are to solve a particular problem, the more gesturing one is likely to do.

What sort of analysis could one do on politicians who gesture their speech with relation to this? For someone like Donald J. Trump who floats balloons (ideas--cross reference George Lakoff) in his speeches, is he actively gesturing in an increased manner as he's puzzling out what is working for an audience and what isn't? Does the gesturing decrease as he settles on the potential answers?