First of all, you should relax yourself psychologically, perhaps because you are too nervous and have no confidence. Naturally, you will walk hunched. Finally, you are so nervous that you can't remember the most basic waves when you walk. The most fundamental thing to solve this problem is to improve your mentality, adjust yourself from the mentality, and then gradually improve your walking posture through gait training. Finally, you can go to some rehabilitation and posture correction studios to evaluate the causes of hunchback and improve the functional coordination of muscles, thus effectively improving hunchback.