The Cheek Kiss: The cheek kiss is exactly what it sounds like - a closed-mouth kiss against someone's cheek. Cheek kisses can be used as friendly greetings, flirty thank-you's or cute, unexpected ways to say good-bye to your boyfriend or girlfriend.The Hickey: A hickey technically isn't a kiss; it's a red mark (a bruise, really) left on the skin after someone sucks hard enough on it. Hickeys hurt a little to get, but some people think the sucking feels good, especially on the side of the neck. It can be embarrassing to walk around with a hickey, so before you start sucking, get permission first.