The explanation of each prank is in the notes/credits:
Tip 1: Put some flour to the top of any ceiling fan. When your friend somehow ends up under the fan, turn it on, then the flour will fall on them. Tip 2: Fill a water bottle with water, then drop a coin into it. Ask your friend to look into the bottle (not around the sides) and tell you what the coin is. When they look into the bottle, squeeze it so that the water comes out. Tip 3: Give them some sort of device that has a camera on the front and the back. Ask them to record you doing something. But switch the camera so that they end up recording their own self but they don't know. Show them later. Tip 4: Ask them to play with you OUTSIDE a game of hide and seek. Then hide inside and watch TV. Tip 5: Just scam call them. Tip 6: Pretend to be their enemy (someone they don't like at all) and call them.