Can be itentified by it's loud high pitched voice usually with a vocabulary consisting of it's name or something completely unrelated to the present time.
To find a Reecha, you can usually attract them with the promise of private school girls parties, alchohol, or not a bath.
Jim "Hello Bob, how are......"
Reecha "WEEHHLOO I AM WWWWIIICCHAARDDD" *runs around with arms waving in the air"
Bob "What was that?"
Jim "Oh that was a Reecha