Write a letter of recommendation. The student was top in my class. He was very active in class, communicative, good leader.He participated frequently and applied positive comments in class that helped his classmates with productive discussion. He took my class during the transition of covid semester. His opinion matter to me and being such a great student he was one of the some students that I emailed personally to ask for an honest opinion about my classes change to online via. He showed a respectful and profesional critic. He is a great student etc. You may just say information one could say for a letter of recommendation.