[momar]

We had an Australian Shepherd named Harley who was quite a boy! A treat was always mandatory, naturally.
-with him sitting --whatever hand you held out and said "shake" --he would stick out that corresponding paw.
-With both of us sitting--whatever hand I would put up and say "hi 5" --he would "hi 5" with the corresponding paw, or if I put up both hands and say "double hi 5"--he would do likewise.
-If you held a treat above him---he would stand on his hind legs and hop around in a circle.
-he would 'roll over'
-if he was down on the floor and you told him to "crawl" --he would do so.
-we had a piano and if I told him to "go play the piano"-- he would run in that room and hit the keys with his paws (but immediately be back for his treat).
-if he was down on the floor and you pointed your finger at him and said "bang, bang" ---he would roll over on his side and lay motionless for a bit.
- he loved to catch a tennis ball in the air (not easy catches,either)
He was my "best friend".