Hey thanks for playing! Maybe you are getting them without realizing, but if not then here's a hint!
"Teddy's been very naughty~"
(Press spacebar to interact with things ;) )
Once you get the secret item, you should get an option to use them. Then just let her run around (maybe forgoing the prize for a round or two, not all spots have one) and the Easter Egg should be right in your face! Good luck!