Did you know that when you touch the cheek of your newborn, they should turn towards your finger and open their mouth? It is called the "rooting" reflex and is considered a primitive reflex. This reflex is designed to help them get milk in their mouth. This reflex is active until baby is 2-4 months old.
We hear it often, I fed my baby and then placed them on my shoulder to burp them and they kept bopping or rooting again so I thought they didn't get enough food. While this can be true, most of the times with our breastfeeding moms, this can be a mixed signal, especially with a first time mom.
If baby ate at least 10 minutes and seems satisfied, but then starts to root when you place their cheek on your shoulder, that is the rooting reflex kicking in and not them signaling they are hungry. Remember, this reflex is there until they are 2-4 months old.