How do the klu klux klan hide themselves?

Answer 1

If you mean how do they hide their identity from the public-

The Klu Klux Klan were a national group, they made a decision together to only show themselves in major occasions.

Yet on this day, other African-Americans, Christians or Jews passed by, they would be disrespected as well.

They dressed themselves in white robes to hide themselves.

They will show in their robes at reunions too.

Answer 2

By putting on white robes/capes. They put white masks that fit the robe as well, to hide their faces. You can search in Google to see images of what they wear.