I caught a young mother raccoon in a live trap a few years ago. The process of releasing her was interesting. She maintained eye contact with me the entire time i was handling the cage. She used her front paws to stay upright and positioned to maintain said eye contact with incredible hand-like dexterity. It was clear she was trying to predict how i was going to move the cage and was doing a good job.

In my limited experience oldet raccoons tend to be much more aggressive, making lots of noise and showing their teeth.