In "Gift Shop", select all of Boggy's items in the wagon.
Easy "Haunt the Swamp" Achievement
When doing a challenge with Echo, you will be given the chance to draw in your notebook. Choose "ghost".
Easy "Intruder Alert" Achievement
In "Protest", select the tent behind Echo and try to get inside. You will be presented with a lock with a number combination. You can find the correct combination "1934", which appear as Roman numerals on the poster at the museum.