THEM: hello there! i'd like the book and the hats, balls can be yours!  YOU: i'm okay with you having the hats, but i'd like book and balls.  THEM: any chance i can have the book and 2 hats?  YOU: i have no need for the hats.  THEM: with that, i'm assuming your book is 2 points, and you're not willing to give it up?  YOU: more  THEM: hmph, alright. i'll go with just the hats.