Couples who are deeply in love look at each other 75 percent of the time when talking, as opposed to the normal 30-60 percent of the time. During counseling, psychologists even use this scale to measure affection between couples.
"I am a lesbian and I was walking through a busy town holding my girlfriend's hand. As usual, we were glared at and yelled at a lot. Then we passed a woman walking with her daughter, who was maybe 7 years old. The little girl asked her mom why two girls were holding hands, and we heard her say after we passed, 'Because they love each other.'"