Who needs giggles when you can laugh?

Matilda's been giggling for awhile now and it is super cute.  Then she started laughing and it's hilarious (at least we think so).  She first surprised me at our neighbors house when she heard the dog barking up stairs and began laughing so hard she sounded like she was crying.  Since then she's been very easily entertained.  She apparently thinks jumping is really funny.  She also started laughing at the dog, which we totally encouraged to the point she squealed repeatedly.  Check out the videos!  They're a bit long (1-2 min), but I had no idea where to shorten them.  Enjoy!