Pull the stroller over, acknowledge their feeling of ______ give them a hug tell them its ok, explain as many times as needed to let the child understand that its ok to feel that way but we cant keep crying. Find a snack, drink, a toy. Only move forward when they are ready to.
Discussion
Aww but it's ok to cry. It feels good to cry. (There is a great song by Jules that says this). I think it's important to instill that nothing changes just because you're crying. You won't get something I said no to, etc, but feel your feelings and let them pass through you.
Also very acceptable in my opinion. Crying doesn't fix anything but it can be a good release of emotions