Press the green flag and type in the code. (your username) Whether one letter is capitalized, it will work. Once you type the code, a small arrow will pop up. Then the project will ask you to pick a number. The numbers are a "secret language" to ghosts, and if you pick a certain one, the device will sense the ghost and the ghost will be detected. Once the arrow moves, it will point to the spot where the ghost is.
Note: if you forget what the code is, you can look at it at the top of the screen.
