Here's how the schedule of a single session plays out. This is the general structure that I would suggest.

• Opening chit-chat
  • 10ish minutes (gives people a chance to trickle in)
• First Pomodoro
• Mini-break
• [Rinse & repeat pom+break]
• Half-time Break / Office hours — this is when you're having the themed conversations
  • Start with 20 mins, and just know that you'll run over at least 50% of the time.
• Pomodoro
• Mini-break
• [Rinse & repeat pom+break]
• Wrap up & Goodbye