It's nice to make people smile.
Kayla is at the grocery stores shopping and there are many other customers in the aisle.
Kayla wants to get everything on her list.
Kayla takes the time to smile at some of the other customers in the store as she goes down aisles getting things on her list.
Kayla rushes through the aisles ignoring other customers and grabbing everything she needs.
Some customers smile back at Kayla and sometimes that's all somebody needs, so Kayla and the customers feel better that day.
Kayla and the customers pass by one another like robots.