A really excellent way to see Mickey is to head to the Hollywood backlot in DCA and spend time at the Animation Theature. They have 3 people come out and do this singing and dancing performance rightoutside the theature, and it always includes Mickey Mouse and 2 other characters. Always a princess, usually Cinderella or Snow White, and for the other 2 characters ive noticed they switched up Woody from Toy Story and Hercules.
They perform several performances throughout the day, and after they head into the theature and do meet and greets with visitors.
CM's told me a lot of people dont know that. So its a good tip.