I am here because I was told to come here. The leaders of my people made a deal with a group of dragons native to this planet and it's associated dimensions in exchange for territory to establish a temporary community for a while. I'm here sort of as a "foreign exchange student." I am to watch, listen and learn about human social interactions and then, when I go back home, I will relate what I learned to those who want the information. Said group of native dragons have members of their own species doing the same thing, but I think with my people they were just looking for a different perspective than they were getting from their own people. Since we are not native to this world or it's associated dimension, and have never encountered anything exactly like humans before we have no preconceived notions about them or their cultures.
That's it. No great destiny to change this world, no grand purpose to achieve before I get to go home, no "protecting the planet from the ravages of mankind," nothing "kewl" at all. Just live a normal life and pay attention. Of course, how I choose to do that is up to me as is what I consider living a "normal" life.
I'll go home when my "student visa" expires.