Behavio is a personality trait rating app for friends, use the app to rate your friend's different traits, e.g Temperamental, Attractive, Admirable, Annoying, etc. And only them would see your rating and they wouldn't know who rated them.
Note that abusive words that relates to racism, tribalism, sexual harrassments and threats are not allowed in this app.
Install and help your friends become better. Cheers.