The video likely worked due to the visual appeal of the colored liquids and the engaging, simple game of tic-tac-toe. The use of emojis and the clear, contrasting colors would have made it easily understandable and shareable.
Summary
Two people are playing a game of tic-tac-toe using bottles of liquid and star-shaped containers. They take turns placing their respective colored liquids onto the tic-tac-toe board.