Rarely. Only when they are faced with something that they have not experienced before
Do you advise them often?
"But suddenly Jonas had noticed, following the path of the apple through the air with his eyes, that the piece of fruit had - well, this was the part that he couldn't adequately understand - the apple had changed." (pg. 24) The change was not effective because it remains the same in both the book and play.
"Asher was Four, and sat now in the row ahead of Jonas. Fiona, Eighteen, was on his left; on his other side sat Twenty, a male named Pierre whom Jonas didn't like much." (pg. 51) This change wasn't effective because it didn't change any plot points and it didn't change what job they were going to get anyways.
"Do you advise them often?"..."Rarely. Only when they are faced with something that they are faced with something that they have not experienced before." (pg. 103) The change between this scene not being in the play is not effective because it doesn't really affect the plot in a major way. It only shows how much the community REALLY needs him