Nothing, it just waved... Prolly my favorite joke of all time, maybe ever.
Because they'll get sand in their Schlitz.
Nothing, it just waved.
You can do this twice. One time with you right eye and one with your left!
Okay folks, time to get out of the pool!"
It had a sandy bottom.
A seasaw
You wave.
What did one flag say to another? Nothing! They just waved.