She loves bananas. If she spots some in the kitchen she'll go wild, pointing and begging. A couple times she's even said, "Nana! Nana!"
She can hang on like a monkey. (I'm really impressed by this; I'm not helping her at all—she's just dangling from my fingers.)
She even talks like a monkey.
 If it weren't for negative experiences she's had owning other (less-exotic) animals, she might still be tempted to try having one as a pet.
 In some of the photos we took when she was born, she kind of looked like a baby monkey, too (e.g. the last photo in this post or the second and fourth videos in this post.