I have 5.5month old twins ds/dd. In between napping/feeding we go to the park for walks, we sing nursery rhymes, lay on the playmat with rattles etc. Started to look at books and also go to a play group once a week. Sometimes i just feel like i should be doing more with them. We go out a couple of times a week to see family too. Does anyone else have any suggestions to keep them active at this age? They sleep well, feed well and are very content babies just having one of them days where i am doubting myself and wondering if there is more i could be doing to help their development. Thanks for reading