The teacher next door can be a valuable person to know during a substitute teaching day.
In order to establish that relationship, I would encourage you to stop by first thing in the morning and say hello. This introduction shouldn’t take very long because every teacher is busy and you don’t want to come across as annoying or needy.
Establishing a relationship with the teacher next door will provide you a place to turn if you have questions about the bell schedule, assembly expectations, and emergency drill procedures.
I hope this suggestion is helpful for you!