Befriend her. Men and women fall in love differently, according to Rabbi Shmuley, relationship expert and author. Women develop a deeper, psychological attraction to men based on friendship and trust.

Compliment her. Women like when people are drawn to them and like to be told they are beautiful.

Join a sports team or a club that shows your character strengths. According to an article published on Oprah.com, women are attracted to confident men who are ambitious.

Kiss her often. Females put a lot of emphasis on the meaning of a kiss, according to an article published by Science Daily.

Flirt with your girlfriend. Women value flirting and assign a lot of importance to how you flirt with them. Hold her hand or put your arm around her. Evolutionary psychologist Steven Gangestad says that flirting is a way for two people to share how they feel about each other. Flirting is one way to enhance attraction between two individuals.

Act nice and be polite. There's a lot of competition, especially among high school students, few of whom are married. Being polite and treating your girlfriend well gives her fewer reasons to find another guy to connect with.

Wear red. One theory, according to an article published in Medical News Today, is that females are attracted to men who wear red or who are surrounded by a crimson hue. A study published in the "Journal of Experimental Psychology" found that red makes a man attractive, sexually desirable and seem more powerful to females.

Share intimate details about your life. Women value deep friendships and psychological closeness. Telling your girlfriend how you feel lets her know that you trust her.

Spend one-on-one time together. A 2010 report published in the "Archives of Pediatrics and Adolescent Medicine" found that the more time teens spend watching television or using a computer, the more likely they were to report having difficulty forming bonds with peers. The more time a teen spends in front of a screen, in fact, increased his chances of feeling isolated from others.