I like when he pets the lizard like a dog.

Reddit comments:

http://reddit.com/r/videos/comments/2tunuy/lizard_greets_man_like_a_dog/

I love the lizard's "give me some more lovin'" head waggle!

It's an "aww yiss"! That lizard knows what he wants.

Calcifer smile!

Calcifer is a bearded dragon not a lizard. 

http://pandawhale.com/post/51082/bearded-dragon-feeding-time-for-calcifer-video

Well pardon moi but dat face!

True dat. Dat face!

hahaha!   all of it, especially you two.

I watched the video again. The emotions of the lizard are fascinating. It seems happy!

it totally is.  i'm pretty fascinated by animals.  they are so full of emotion.  even my little betta fish has started doing leaps of joy from his bowl when i chat with him!  he's like own my tiny dolphin!

That's sweet. Do animals have emotions? Of course they do.

http://thebark.com/content/do-animals-have-emotions