@izzythepush,
Funny enough, I am reading Disney War by James Stewart, and in order to interview some of the Disney executives, the author had to work as a character in the parks.
He ended up being Goofy and had to learn his mannerisms, speech patterns, and writing Goofy's signature while wearing oversized 4 finger gloves. Stewart says it was very difficult but rewarding when he met with kids.