Baby Tricks: All Fours, Pulling Up/Standing with Support, and ..... Crawling!

Lucy is full of baby tricks lately!  In late December she started pushing up onto all fours, and she's now been crawling since the first week of February (see video, below).  She can pull up to standing as well.  And she can clap now, which is very cute.  She is pretty fast when crawling, and she gets sort of excited and pants as she gets closer to whatever she is after (lately that means paper and the peat moss in our potted indoor lemon tree).