0-3 month activities?

Jhawk90

FTM - my little guy is 8 weeks old and loves loves loves his swing. He'll swing all day and nap away. However, after I feed him (either nurse or expressed BM) I try to engage him in play time (I.e., making faces, singing songs, stories, bicycle kicks, soft rattles with bright colours, etc.). He usually only wants to play for 20-40 min at a time and then he wants a nap in his swing. Just wondering what are some other activities to do with the little munchkin? He sleeps 8 to 8.5 hours through the night so I doubt he's overtired or anything.