Social adaptation

This is the skill, to tie in with the example from disguising, that enables one to go into hiding in a crowd like Vault-City's inner city, by mimicking the behavior of a group of people. Disguising will only work as long as no one speaks to you. From that point onward, this skill takes over.
But also when a poor character is invited to a banquet hosted by the richest traders of the Hub social adaptation handles that situation.
Bonuses and handicaps are best applied by the time the character had, to study the group of people he's infiltrating.

The starting value is: 2 * I + 2 * C