how to hide your feelings

sometimes, we just don't want others to know our feelings, and we want to hide our happiness and sadness inside, don't want to let others know, and don't want others to worry about us. then, we need a way to hide our feelings natrually, do you want to know how?
take this orange man as an example, do you know how he is feeling now? from his action, you may think that he is very happy now, but i don't think so. we just can not see his face, maybe he has a sad face not the happy one. because he is wearing his orange lycra zentai that covers him fully.
he just hide his feelings under his orange lycra zentai, people can not tell what he is thinking since we can not see his face at all. and if you just don't want others know your feelings, you can just try this way to hide yourself in zentai.