Instead of shaking his hand, Deryn leaned forward enough to give him a hug. Because why wouldn't you give someone a hug upon first meeting them? There was no reason not to.
"Hi," she said again, never really seeming to mind when she repeated herself. "I'm Deryn. Or Derpy. Or just D, I guess." she had a lot of names, and never really cared which anyone called her.
"This is Shanna," she said, of the goat. Her voice was light, and musically whimsical in it's own right. "She does seem to eat nearly everything...." The goat in question was now headbutting Spike's hip bone.