The hypnotism post got me thinking about social roles, as did certain IC innovations. There is a lack of social-related code, especially since one's only clue to another's Charisma score is their shortdesc. Don't get me wrong, RP handles most of it, but I just wish having a mechanically high Cha score had more weight.
One idea is a 'deceive' command, or something similar. Basically, every time your character is hiding something from another character (in person) you type this command to roll Charisma vs Perception (specifically Personality vs Awareness.) If you win, they never know you rolled it. If they win, however, they get a message like, . o O ( Something is off here... )
This would not just be for outright lying. This would extend to half-truths, poker faces, hiding emotion, etcetera.
Obviously, certain chrome would guarantee success.