The other day I found Luke eating a chicken breast. He'd moved the chair over to the counter where the chicken was cooling off (already cool) and started chowing down.
Other things Luke's up to:
Waking me up 1 hour before anyone needs to get up. (This is driving me crazy and making me very grumpy).
Pointing to/at everything
Giving his brothers hugs
Singing songs (with words like da da da)
Getting entertained and carried around by his brothers (as in the picture below where Jack created a little nest with blankets and toys and then pushed Luke around in it)
Smiles when I take a take a picture