Oh dear, you've entered a drinking competition. The conveyor belt delivers the drinks. The only thing left for you to do is gulp them down and store them in your stomach until your stomach acid has risen high enough for you to burp and relieve yourself.

Be the “Last Stand” by actually standing still.

Controls on the desktop
Rotate the drink with A and D
Move the drink with the left and right arrow keys (<- and ->)

Controls on device with touchscreen
Rotate the drink by moving the left touch stick to the left and right
Move the drink to the left and right using the right touch stick

Known issue:
On Apple devices, a bug in Godot causes the game to quit after a few seconds.

More information