a kiss
Examples
A kiss is a lovely trick designed by nature to stop speech when words become superfluous.
Hollywood is a place where they'll pay you a thousand dollars for a kiss and fifty cents for your soul.
A compliment is like a kiss through a veil.
A bite from a loving mouth is worth more than a kiss from any other.
An honest answer is like a kiss on the lips.
Do not correct with a strike that which can be taught with a kiss.