Witnessing another individual teacher deliver lessons is a powerful way to re-examine or reinvigorate one's own practice. What are you interested in looking for? What practices surprised you? What did you see that might influence how you do your work?
Observe a teacher who is either in your department or another department, in your school level or who teaches a very different age student. Get started by contacting the teacher who you would like to observe and selecting a date/time, or email ile@p to discuss who might be a good fit.