Kind acts and karma
Action that is willed with Goodness and without desire for outcomes however subtly, by one who performs it will always produce a future "ripening" and ultimately a "fruit" of similar moral quality,
In the human sphere karma operates in an ethical manner. An ethical and loved filled action will produce a come-back of like kind in this life or even future rebirth; Self willed free undertakens will create it's own love filled magic.
If one wants to progress spiritually--or just live with genuine kindness with no desire for outcomes.. Just remember to love the other as one would wish to be loved,, Always speak and act, for the betterment of the whole.