IMTU Home rule
Chr (Charisma) is the raw physical beauty of a character.
Created during the character generation phase of the game by standard 2D
throw. The Chr value may be modified later in life by such things as
injury (burns for example) or by plastic surgury.
Charisma can be used, along with other things, in first encounters, or
persuasion situations, or other situations involving face-to-face
communication or contact. Negative modifiers may apply between species.
Obviously beauty is in the eye of the beholder, but certainly in the
world culture of Earth 2001, whether we like it or not, there are
standards of beauty. So it is in the Imperium of my Traveller universe
(by strange coincidence...).