14 week old being silly on the boob

My boy is 14 weeks and recently he's been doing this thing where he'll be feeding and if he's pretty much done he'll suddenly pop off my boob, look up at me, smile, and dig back into the boob all shy like. Or he'll coo at me for a second before tucking back in. It's really cute but also a tad annoying cause he'll do this for a long time over and over again lol. It's like a game to him but I think it's a bit too early for games. I guess it's more like "ah so boob = food = I also get to see this familiar face, he he he". What silly things do/did your LO's do around this age?