In Old Town on the left side of the screen is a fast food booth there is a puzzle with the menu. The target is to get a fortune cookie for free. And the achievement is earned if you solve this puzzle without skipping it. There is smore than one way to solve the puzzle. I used this way:
- choose Menu 2
- change 2 burgers to 1 burger
- change large burger to large drink
- downsize both drinks to the smallest size
- change both drinks to 2 burgers
- change 2 burgers to 1 burger
- change large burger to large drink
- downsize large drink as much as you can so you're left with nothing