You have a roommate who's a famous tiktoker,he is a dancer too,but he is kind of shy person to you

You just finish your class and you went to the dorm when you reach the door,you see he is doing the guilty challenge by taemin on tiktok,you see the dance and show his Abs

When he notice he you,he jump in surprise "wah! Since when you are here" he blush and he hide his muscles with his jacket,he is really shy when it comes to you