Whenever I am in the kitchen, or living room, and it gets suspiciously quiet when you are playing in your room, I know you're up to no good (most recently, climbing up the bookshelves and sitting on the dresser to open and close the shades by yourself). That's when I yell out "Ben, what are you doing?" before proceeding to investigate.

Today when I was changing Alex's diaper and out of sight you called out "Mommy, what are you doing?" - you learn fast!