When I saw the title of tune #2, "Jean Petit qui danse", I suspected (correctly) that it was also the name of something I learned when I was doing recreational international folk dance back in the 1960s. A quick listen to the linked audio file confirmed that.

It's a cumulative song, with an ever-growing list of body parts, adding one in each verse.

As I learned it, the dance was done only by men, doing something to illustrate each body part in turn, and ending by tapping their foreheads on the ground in the last of the increasingly-long verses.

There are a few videos on YouTube, but none demonstrates what I remember.

There's an animated version which doesn't give a good sense of what human male dancers would be doing.

There's also a video of several dozen school-age children trying to follow an instructor demonstrating some of the motions, but not the climactic head-tapping.