The happiness of life . . . is made up of minute fractions — the little, soon-forgotten charities of a kiss, a smile, a kind look, a gentle word, a heartfelt compliment.
(Samuel Taylor Coleridge)
The "little things" ... saving, sometimes swifting graces. 
It's said that "God is in the details" ... and so is love.
"There are no little things. 'Little things' are the hinges of the universe." (Fanny Fern)
Little things. I recall a story of a young man who was close to ending his life. He'd had enough, and was standing on a bridge. A (supposed) stranger approached him -- a younger boy who sensed his distress. The boy simply asked him, "Are you OK?"
"Are you OK?" turned that man's life away from the abyss. He chose to live. The boy who'd asked the question walked on after pausing to ask the question; the man did not verbally respond, but stared into the boy's eyes, beseeching, searching, agog with the rush of feeling that swelled in him and streamed through him. The heat of care, the bulb lit in his heart. One small, ordinary question from a boy passing by. 
"Are you OK?"
"We do not do great things; we do only small things with great love." (Mother Theresa)
That boy did one small thing with great love. He may never know that he saved a life. 
Ask the question. You might save a life.