Babies need relationships with a few key people. Make it clear that you'd like to look around the center, but mostly you want to sit quietly and watch the children and caregivers. Look for at least three centers to choose from, if possible. It helps to compare. At least one caregiver is available for every three babies.
Caregivers look as though they enjoy their work.
Caregivers talk to the babies often and the babies respond. Babies have a quiet sleeping area. Enough space is available for babies to crawl around. Equipment and toys are clean and well maintained. There are plenty of toys for babies.