Male and female cast members are not allowed to shave their eyebrows. Men's hair cannot extend over their ears or shirt collars. Women's hair has to be neatly brushed. Braids are allowed, but not beads.
If you ask a cast member for directions, look at how they point. It's usually a gesture with the whole hand, or with two fingers. They never point with one finger, because in some cultures it's considered offensive.