All of this goes against the teachings of The Rules.
According to legend, if you follow their thirty rules for courtship and dating, the man you have always dreamed of will ask you out, woo you, treat you like the queen you are, and eventually propose. And Sunday dinners and taking a plate of brownies over to a guy you like is an expected commonplace occurrence?
LDS Church doctrine bars sexual behavior outside of heterosexual marriage, and sexual transgressions are considered second only to murder in seriousness.
The LDS Church teaches its members to obey what it calls the law of chastity, which is a code of morality and modesty.
But if you're talking about kissing people you date, be cautious in how you use this form of affection.
Don't throw kisses around - treat them as something valuable to be used with discretion. Under a second or two could be a useful rule, I suppose.