Will is starting to smile.  I don't know if they are real smiles or if he is gassy.  Finn can get him to smile quicker than anyone.  These pictures are of Will responding to Finn (you can't see Finn in all of the pictures).

Will really likes my bathroom.  He is pretty content sitting in there while I get ready.  He also likes sitting in the kitchen while I cook.  I think it is the bright overhead/can lighting.