Whoa! [Aang is slightly startled, but mostly he giggles. He's used to dealing with wild hog-monkeys back home, who are known for being temperamental when you try to ride them (but Aang of course tries anyway). Not to mention being used to Momo. So he doesn't fidget much and lets the monkey board his head, smirking as he tries to glance upwards towards him.]
Action I
Nice to meet you, too!