See this blog post for eleven helpful and common-sense tips related to guest preaching opportunities. In the post, Brandon identifies the following eleven points.
1. Honor the senior pastor
2. Respect the time limit
3. Arrive early
4. Stay late
5. Know your audience
6. Honor the topic / text / series you are given.
7. Know the stage transitions
8. Say “Thank You”
9. Learn how to accept a compliment
10. Come prepared
11. BONUS TIP: Ask for feedback
A commenter also added "dress appropriately." Read the entire post for additional explanation of the points.