How does superman hide his identity even though he doesn't wear a mask?

Many superheros wear masks or cowls in order to hide their identity, but Superman never wears anything to cover his face but still manages to hide his identity.How does superman hide his identity even though he doesn't wear a mask?
superman moves his head back and forth at superspeed,its not noticable to the naked eye,but it prevents a clear photo being taken of him.plus he flies alot making it hard to look at him. How does superman hide his identity even though he doesn't wear a mask?
Simply because its fantasy. Obviously glasses and a decent 3pc. suit isn't enough for people to look at you and say... oh no thats a different person. Unless he also has some new power of mind control.
It's the hair and glasses. He removes his glasses and puts gell in his hair. Also, not many people see him close up. Also, some people are stupid.
his glasses work as a mask in reverse - hiding the superhero instead of the regular man.
He removes his glasses and discards the Clark Kent nerdy look.