I think it is the caterpillar who should be thanking you.

[Wow, this thing is even uglier up close. Changge's smile doesn't falter though.]

I haven't introduce myself. My name is Li Changge. It is nice to meet you. [Bowing as well as someone who is holding a caterpillar could. Which means no putting a fist in the other palm as a greeting, but whatever. It's your fault this caterpillar is in the way, so...]