^wow, see that was harsh above, miranshortcake. :nope:
It takes a bit of messing around, but you'll eventually get it. This falls under the category of "hints", so you'll have to click the spoiler button below to read the rest of my text.
Spoiler basically, you want to click the biggest pie wedges when the person's face is smiling the most
If the person's face is not smiling, you want to try to click on the smallest pie wedges. I'm not explaining that very well, but hopefully you get the picture.
You have to sort of plan which pies to click on. Sometimes you'll need to click on a pie wedge which puts the person's disposition towards you down, because the next pie wedge will be in a position you want it in (nice & fat).
I didn't explain that very well, but at least I was nice about it. It's kinda dumb, the disposition mini-game, but after you do it a bunch of times, you'll start to get better and better at it.
HTH