If you trust him, and you think the other guys actually expressed discomfort at how formal you act, then the right move is to pay attention to it and try to be more personable with your team. Engineering is a highly collaborative profession, and it's important to be cooperative and generate personal relationships with the people who work alongside you.
It's also possible that he's wrong, and you're doing just fine. Don't let it get to you, just take the advice into consideration and act how you see fit.
What kind of engineering work are you doing?
It's also possible that he's wrong, and you're doing just fine. Don't let it get to you, just take the advice into consideration and act how you see fit.
What kind of engineering work are you doing?