Regardless of what you want to learn, "small daily activities" is a bit hard. You can learn some stuff by osmosis, following the feeds of AI devs && AI channels, but the bulk of what I learn comes from starting projects & digging into code & reading papers.

If you can hold attention span over several days (I can't), work on a project bit-by-bit. Just make sure it uses modern AI stuff, and that you have smart people to talk around with.