JOKING GESTURE

IF YOU SQUEEZE A GIRL'S KNEE AND SHE LAUGHS, SHE HAS A
BOYFRIEND.

Submitter comment: MY FATHER USED TO DO THIS TO ME WHEN I WAS LITTLE. IT WAS
A TEASING JOKE OF HIS THAT HE USED TO DO TO MY SISTERS,
OUR FRIENDS AND MYSELF.

Where learned: MISSOURI ; SAINT LOUIS