A key part of creating the right impression is about wearing the right clothes. Don’t wear jeans to a formal dinner – if you want to impress anyone.
I had a small battle with myself over this just the other day. It was the first day back of the term and a staff training day, this means it’s fine not to dress smartly. I made a judgement call in deciding that perhaps a T-shirt which has the “plain lazy” logo on it wasn’t the ideal garment to wear when wanting to give people the impression that I work hard.
If you aren’t sure how to create the right impression just think WWMW.