Hey. I’ll tell you as a friend, that in trade what matters is how you present yourself, not being a dork or a nerd. Then, not only girls, but also customers will love you. This is my secret, feel free to use. I have a little business proposition to Elvira, the chief therapist at the hospital. But I can only trust you with this if you pump up your charisma, because right now she won’t even look at you, no offense. Gonna make a real man out of you.
Wow wow, easy there, I'm on your side, man! Sorry, I'm just fucking around. I see you have mastered your charisma, that's good. Let's talk about business then.
Charisma is leveled by picking up items. To quickly level this skill place every item you find inside your inventory, even if you don't intend on keeping it. Because of the large number of items, going to filing cabinets and picking up everything inside them is a good way to gain Charisma experience. If you don't want the items, simply drop them and this will not slow down your experience gain.