If by 'greet' you mean 'nearly trample upon', say hello to a blue unicorn's front hooves!

She backed up, regarding the pegasus she pretty much full-body crashed into. "Oh my gosh, I'm so sorry! Are you okay!?" She offered a hoof to help him up. "I-I wasn't looking where I was going... I'm still exploring this village."

It might also become obvious that the air's suddenly turned rather cold...