Um

I hadn't seen AJ in a few days thanks to working long hours over several days in a row. Last night when I picked him up from church I discovered that he had learned a new "word." I sat him on one of the tables in the lobby to put his coat on and he sat there contemplating something very deep as he just repeatedly said, "Ummmmm, uuuuuuuhhhhm. Um? Ummmm. Uhhhhm."