The game in Spain is like this: Veo, veo (I see) ¿Qué ves? (What are you seeing?) Una cosita (A thing) ¿Con qué letrita? (What is the initial letter?) Con la letra ... (The initial letter is the ...)

I spy would probably be more like this in Spanish: "Veo, veo algo azul." "I see, I see something blue." I spy is a creative way to practice the use of descriptive adjectives.