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Daito Manabe uses electrical stimuli to get his face muscles to twitch--yes, little electric shocks! The twitches really get going after the first 40 seconds or so of the second video. In that one, he manages to synchronize the twitches to the different beeps. The first shows what happens when the signals speed up!

Daito Manabe is Japanese and the YouTube videos are labeled as "electric stimulus to face -test3" and as "electric stimulus/myoelectric stimulus," which suggest he is an engineer working on... whatever. Perhaps it is a new device or prototype to something for the future. Maybe a facial toner?