I also consider that it is important for children to keep themselves busy and learn to play or have a good time on their own. My grandson likes to be with me and we have a very good time together but sometimes we are on differente things. he likes coloring, playing with play-dogh and reading (or looking at) books. Not only is it good but it has to be practice so that they learn how to handle their time.
.... I've heard of creating 4-5 "stations" where they can do something, and if they get bored, you just move them to the next station for a change of pace. We haven't done this yet, but I've wondered what would be suitable.
ouroboros, i think it is a good idea for a baby having those stations. Baby not only play with their hands but also like to watch the ceinling, the walls or their surroundings. My grandson liked viewing the paintings on the wall when we were at friends house.
The issue here is to keep a balance because babies also learn through interaction and we need to talk, sing, hug them a lot and not to be kept to much time alone.