All you really have to do is:
Someone above you posts a food, you say either yum, or yuck, then post a food under that, the person below you will do the same, Etc. Etc.
I'll start off!
Chocolate?
Someone above you posts a food, you say either yum, or yuck, then post a food under that, the person below you will do the same, Etc. Etc.
I'll start off!
Chocolate?