My Sim has level ten charisma, and it still takes her hours to make friends. This is very different from The Sims 3. It does seem to go faster if I use social interactions that don't take a long time. She's observant and I try to use interactions that relate to their traits if possible, and discuss interests, but I'm not sure if this speeds things up. I also make sure she's in a confident mood when talking, since I heard this causes the interactions to have a greater impact. Also, I've noticed that interactions that come up because my Sim is confident, like Propose Crazy Scheme, seem to have a greater impact. Still, it takes hours. Anyone manage to do it faster?