Engaging Class During Star of Week

Laura specifically addresses one way to keep  the class engaged during the Star of the Day/Week activity:
I make it into a guessing game. How well do you know X? So for each question they have to guess asking the Star using 2nd person singular. While the Star answers in 1st person singular.
If I see their friend/s will get all the answers I either have the Star change the answer or don’t let the friend/s guess.
The class gets a certain number of guessing chances ( the number changes according to the question) for a point towards 15 min. at the end of week for PAT. I make getting these 15 min. very difficult so there are weeks they don’t get them because I don’t do Star everyday.
But since the students have to guess for a point most are very engaged. I don’t let someone guess twice before everyone has guessed on something once. I work too hard to have sleepers or floor/window watchers.