David is in the innocense of one or two word communication--I love to hear him express what must be a complete thought inside of his head in the conciseness of his simple vocabulary. He uses the word "Buh-bye" a lot to accomplish this.
When he senses we are getting our shoes, gathering snacks and getting my purse to leave he starts saying "buh-bye" to everything in sight: the light, the shoes, the blocks, the puzzles, the house . . . then he cycles through them again and again until we are down the street. In this scenario, it is a very excited expression. His tone interprets to "sorry I gotta leave, guys, but I really have somewhere more important I need to be."
When he comes in from outside (buh-bye outside), leaves the park (buh-bye weee) or gets out of the bath (buh-bye bathbath) and he's not quite ready to be done, he uses a tone of sadly resigning to leaving the fun behind. I can hear the lump in his throat that wants to cry out and demand to keep playing . . . it is a very sweet thing to realize it's hard for him to leave it behind, but he is still doing it willingly.
My favorite was last week in the car at the end of a long morning of errands. I knew that naptime was closing in on us, and I only had one more place to run. On the way, he sunk lower and lower in his carseat and tried to drift off to sleep. I got to the parking lot, and went to get him out. After I unbuckled him, he stayed exactly where he was, too relaxed and tired to really move. All he did was sit there and quietly say, "buh-bye night night. buh-bye night night." What a sweet boy! Made my heart just melt . . .