The first time I saw this, I told myself: "If this baby can be so unbelievably happy over the smallest things, SO CAN I!"
The next few days I just tried to pick out everything funny around me, everything that was worth cherishing, and everything I could potentially be grateful for...So much so that when I was on the bus and it made a slight farting sound because of the breaks, I burst out laughing...and caused a few rows to laugh AT/WITH me as well ;)