Four experiments compared 4-year-olds' understanding of pretense to that of 3-year-olds or adults. When shown pictured items, 4-year-olds understood that only animates pretend, but 3-year-olds sometimes claimed that inanimates pretend. When shown actual items, even 4-year-olds sometimes claimed that inanimates pretend, especially when adults explicitly pointed out that the objects looked or acted like something else. (Author/KB)