If you are talking in general terms walking on the street, then you really do what your father and Rebbeim teach you to do. It is appropriate to show that you are always dressed as if you are standing before the KING, and your appearance elevates you to a higher madreigah always prepared to learn Torah and do mitzvos.
But that doesn’t mean that someone who does not wear and hat and jacket is wrong. I would say that one who does is mehudar.