animation
window:
Use an "up, then down" motion. The dominant hand (that's means
the "right hand" for six out of seven of you) moves. The base hand
("left-hand") stays put.
OPEN-WINDOW
Notice: "open-window" uses a single motion.
animation
"CLOSE-WINDOW"
Start with the window open, then close it. Use a single quick
motion. The right hand is doing all the moving.
