A toddler's hug meant a lot to a pizza delivery man, who was mourning the loss of his daughter.

This North Carolina teacher has taken the time to make a personalized handshake with each of his students. He says it started with only one or two, but he saw how much it meant to them, and it became contagious.

When actor Jason Segel was asked if he's ever concerned about giving too much of himself to others, he said it's important not to give to others who are just there to take. "It's the cycle of giving and receiving and giving and receiving that is what friendship is supposed to be about, so that you never get emptied out," he said. "It's the rich exchange of love."

Achieve You compiled a video of people giving strangers notes saying things like, "Hope your day is filled with love and positivity."