The “ment” is dancing.

A man in a dark blue uniform and cap stands on a paved path in a park-like setting, repeatedly performing a series of sharp, martial arts-style hand and arm movements while facing the camera. In the background, a group of people, including a woman with a stroller and a small child, stand and watch him. The man's movements are rhythmic and deliberate, involving sweeping arm gestures and changes in stance, as he remains in the same general area throughout the loop.