"A random act of kindness is an action that is performed for another, usually a stranger, simply to bring that person happiness. Someone who performs a random act of kindness expects nothing in return. "
Source: Grammarist.comWhile we are all for random acts of kindness, its always important to make sure that what you deem a kind gesture is being truly kind to all people involved. Check out this article about how recording ourselves doing good deeds can do more harm than good. Then, listen to this podcast about the ethics of the phenomenon of the viral good deed video.