"Hmm... Yes.. Sounds interesting, I'll see if I can apply that to my work. Thank your for your valuable input." Also you probably still have some idea of what

"Hmm... Yes.. Sounds interesting, I'll see if I can apply that to my work. Thank your for your valuable input." Also you probably still have some idea of what is going on. You still had to pass all your in-person exams in your academic career so far.