Foxy is stalled by looking at her camera just like in the original FNaF 1, but Freddy actually moves on a timer (I think she moves every 1 minute and 15 seconds) and she isn't stalled by the camera, so just close the door about halfway through 5 AM since that's always when she attacks and open it after you hear her laugh. (to be PRECISE though, if you start a stopwatch at the start of the night, Freddy will attack you when your stopwatch hits 7:35-7:45, so close your door during that time)