You will need:
and a pet that stays in a cage (Rabbit, Parrot, Rat, etc.)
Step 1: Placing the Walkies-talkie
Make sure you go to the pet before your victim does. Put one Walkies-talkie next to (or inside) the cage. Make sure it is turned on!
Step 2: Trick your victim
When your victim goes to say hi to the pet or even just walks past the cage. Speak into the Walkies-talkie Say something like 'Hey you are you going to feed because I am starving" to get the victims attention. Hide in a nearby closet or something so you can hear you victims response. then continue talking.
Step 3: Prank complete
Wait for your victim to run away to get somebody. Retrieve the walkies-talkie. When the victim comes back he or she will look crazy.