Ok, what you do is you look around you and focus on something (like a book) then you say I Spy... and describe something general about the object ( I spy somthing red; or I spy something rectangular.) Then the next person find something that fits that description that they can see, (An Apple, A box of cards!) and then posts another I spy.
Example:
I spy something sharp.
A pencil.
I'll start.
I spy something wooden.
Example:
I spy something sharp.
A pencil.
I'll start.
I spy something wooden.