He's saying, "Wow, it's sure nice to meet you!" in the first picture. Mr. Snail hasn't spoken his name yet, but the turtle is Sam and the duck is Walter.
Here's my quick first attempt to figure out how slowly I'd have to move the characters:
http://www.youtube.com/watch?v=ewmutdscAog I'll make a better one next time I'm not busy reading for grad school or working at Momoyaki, this Korean restaurant where I recently started working part-time.