As a Sunday-school worker hurried down the streets of Chicago one day on his way to Sunday school, he noticed a little baby being held at the window by someone in the family. He turned towards the baby and smiled. The baby smiled back. The next Sunday the baby was there again and again he smiled at the baby and waved his hand. The next Sunday there were several at the window with the baby watching for him to pass and again he recognized the baby and smiled and waved his hand. Someone in the house followed him. They saw him turn into the Sunday school and went back home and told where he had gone. The next Sunday some of the children appeared at the Sunday school and finally the whole family was won for Christ. Won by a smile. No one can ever tell where some little act of kindness will end.