I'm sitting here listening to my two boys playing together. They're chasing each other around the house with pillows from the study. It's that kind of gleeful laughter that only kids can make (happy kids, that is). I turned to watch them and noticed The Boy's eye movement (tilting his head forward to see when he rolls his eyes up). It's so automatic, it doesn't interrupt his playing.
A new thing developed today. The Boy was laying on the couch watching some mindless Disney show and we heard this little "Mm...mm...." like about every 10-20 seconds. The kind of quick "mm" you give someone as you're listening to a story. An abbreviation of "mm-hmm", you know? He did it through the entire show. Never heard that before.
Earlier in the day, as I was playing with him (which entailed wrestling, hugging and kissing all over while he yells, "[Lil Bro]! Save me!!!"), I noticed lots of verbal tics happening but with his mouth closed. I'm wondering if he's subconciously suppressing them by clamping them behind a closed mouth. Because he didn't seem to notice he was doing the tics or the closed mouth. Who knows - could be that he's teaching himself ways to socially control things. I only noticed it because I was literally in his face during the play time.
The good thing is, it didn't interrupt his play. It didn't stop the squeals and laughter. And I am lovin' the laughter!