Some things not to do:
- shoot layups
- poll the audience for second-half bets
- try to pick up the hot female coach of the visiting team
- others?
(One of these I know from experience.
)
In all seriousness, with my regular P:
- the R takes the ball to the table, reverses the arrow, checks the score and foul situation, and writes which team gets the ball for 3Q on the scoresheet
- as a courtesy, inform both teams before they leave whose ball in the 3Q
- asks the table if there are any questions
- relay any necessary info to the U
We then leave the court and grab a drink or something. We come back after a few minutes and sit by the table waiting for the second half to begin.