So I have been shadowing an orthopaedic surgery resident this semester and probably wont be able to next semester since he is moving for a fellowship early next year. With this said, is it customary to give a small token or gratitude for the opportunity to shadow him? I mean, he has taken the time to explain things to me, show me things in surgery, and allow me to attend conferences and such; I think the least I can do is give him a gift. Anyone else do this? Thanks.