SinombrePEJ, according to the FNAF 1 Wiki, Freddy does the following things:
- Freddy always takes this path to the player through the building: Show Stage → Dining Area → Restrooms → Kitchen → East Hall → East Hall Corner → the Office. However, once he reaches the East Hall, he will never backtrack to the Kitchen and will keep moving between the East Hall and the East Hall Corner for the duration of the night.
- The easiest strategy against Freddy is to watch him on the Show Stage camera. If Freddy moves, check his new location. This will make him barely/slowly move and most likely confine him far from the Office.