Just wondering if anyone has some suggestions on ways to entertain an 11week old. He is perfectly happy to lay on his play mat and stare at things and kick his legs up. He can only do short bursts of tummy time before he gets so annoyed he starts crying until he is picked up or rolled over. And I sometimes lay with him and chat or help him reach for the hanging toys on his play mat but wondering if anyone has any ideas of things I can do with him over the next while to keep him interested and interact with him and also help him develop. Or suggestions on a book I could get that has activities for young ages. I'm not sure if I am over stimulating or under stimulating him. Sooo confused.