Here's video of Klay Thompson pelvic thrustin' like a champ next to a couple Chinese women ... trying (and failing) to follow them in a b-ball-themed dance.

Klay was at a shoe store in China to promote his new Anta brand kicks -- and had to bust a move for the culture. We think it was a kinda goofy routine ... but the Splash Bro liked it. A LOT.

#ChinaKlay was feelin' himself so hard ... he kept it flowing even after the track cut out.

FYI, this ain't the first time KT went HAM on his shoe tour.

GETTIN' DOWN
@mmmmmmmonicaaaaa