I'm wondering if this is as much as him being the youngest, like you developed a parenting style with your girls and it's a big change to have a boy? I have one son but always felt if I had another one I would have wanted another boy because I know how to go on with them lol, I was only part joking.

Maybe try video gaming with him as it's his enthusiasm, if you're anything like as bad as me at it you might earn some sympathy points - and it can be a conversation starter.

For me to this day walking with my son is still a bonding thing, you can have good 'eyes forward' conversations that way, he often opens up and unloads what's on his mind that way as Tish says you can just be there to listen and be interested in his world. Maybe factor in a purpose for the walk, a hot chocolate/ice cream mission?