Meet Thy (thesis) Supervisor
Imagine you met your SV and he just smile at you. What is that smile for? I mean why did the smile stay for the whole meeting?
Tho you prepare for the meeting, it is not a guarantee you walked out 100% as before you enter the SV's room.
p/s-I am not mocking up my SV, in case you feel like that. My SV is super cool (to provide me a professor level room and etc). This is just what we call satire. Or whatever you like.