[alexpotato]

The debriefs especially are incredibly valuable!

Why?

You may think something happened based on your surface impression of what just occurred. The CEO may view it completely differently based on:

  a. information you don't have e.g. past history etc
  b. non-verbal cues (as other comments have mentioned)
  c. something else

Ideally, the CEO would turn to you after each meeting and ask you "What do you think just happened?", you give your thoughts and then they respond with what they think actually happened.

I've read/heard multiple accounts of where this has been game changing for the non-CEO/manager person as it gives you an insight that you would only ever be able to deduce slowly over time via trial and error.