Recently I was walking out of Target and in front of me a mom was pushing a stroller with an infant in it and a dad was pushing the cart with a toddler. The toddler was saying "mommy push me", "mommy push me." And so, in a fluid movement the parents just switched places. It was so simple, but so responsive. This little girl was saying "I need some attention from mommy right now. I want my mom." It would have been so easy for the dad to say "You're OK" or "We have to get to the car now" and just ignore her request. But he didn't. It was so mundane, but actually very powerful. It said to the child, "We hear you and we respect you. We are responsive to your needs and wants."
This is so powerful! Even very young kids deserve to be seen, heard, and treated as an important person. When we do that, we build trust and this is key for a strong, secure attachment.