I mean show evidence that you are learning something.
Ask questions about their responses.
You are not meant to be just taking the answer or just copying the working.
You are meant to be learning!
Say 'thank you'. Or say you do not think it is correct because [fill in the blanks]
But also ask things like :
"how did you get from line 2 to line three"
"I don't quite understand this bit .... could you please explain more?"