Within the world of this journey, it's important that we create enough of a setup so the payoff is strong. So in that key moment when the mom wants to open the trunk as they are leaving the flower filed and the daughter presents her with a floral crown, it's as though the gift distracts the mother. This will be even more powerful if we see the father take the kids aside when the mother isn't looking and give them a little "pep talk," as if to say, "I'm counting on both of you to help me do this for your mother."
Another good moment is with the teddy bear. Again, the mom wants to put the large stuffed animal in the trunk. The son can look at the father, who subtly nods his head towards the car's cabin. In the next shot, we see the bear in the back seat, between the kids. Small, organic moments like this will build a little suspense and show the dynamics of the family and their interaction.