Many of us feel insecure when joining a new group, and that can make us try to present ourselves the way we think people want us to be. It costs a lot of energy to pretend to be different than you really are—plus, you’ll have to keep wearing a mask in order to not disappoint. Most people can sense when you’re not being authentic, and will avoid you or feel you’re not trustworthy. So relax and remember: you’re fine just the way you are.