also: そとづら
The outer surface of this box is very smooth.
outward appearance; external appearance
How something looks from the outside, often contrasting with inner reality.
He appears calm on the outside, but he's actually short-tempered.
manner with others; demeanor; outward bearing
Only with reading そとづら
Specifically read そとづら. Refers to one's behavior or attitude shown to others, often with a nuance of putting on a front.
He has a good manner with others, so people he meets for the first time like him.
He puts on a nice face for others, but he's cold to his family.
She's very careful about dressing up her outward appearance.
Kana spelling for the reading そとづら, used for the 'outward manner' sense.