Aggressively Meow at every person you pass.
When in an elevator meow occasionally.
Meow at your cat and try to get it to meow back.
Walk into an elevator. Wait until a few people are in it, then sit in the corner and meow once in a while.
Sit in a large dog house, and when people walk by Meow at them.
Only meow when some talks to you.
Walk up to a friend without letting them see or hear you, and meow really loudly. For best results, record on a device that you will keep and taunt them with it. Not for very long, though.
Meow at everyone who looks in your direction.... MEOW!
In an elevator meow whenever someone presses a button.
On Google Translate listen to the pronunciation on meow in Afrikaans.