Day 2?
Since you were able to be kind to someone yesterday (you were - weren't you?)
How about trying it today also?
Who knows it could become a habit. Not a bad one at that.
Kindness has been around for a long time.
What would a random act of kindness hurt today?
Open a door for someone holding packages.
Smile at a stranger.
Let someone go ahead of you that has just 1 item at the checkout.
What would it hurt?