There are two basic rules that men ignore, but they must be aware of.
The first rule is always be well groomed.
Make sure you are clean shaven, or if you have a beard/mustache that it
is trimmed properly, and always have your hair neatly combed and add
some Gel or mousse so it stays all day.
The second rule is Never ever wear white socks unless you are in
shorts and sneakers (or you are going to a White Party). Choose dark colors that match the outfit you are