At this stage, real contact with the opposite sex begins, and each side begins to realize the difference and similarity with the other sex. With puberty and the onset of adolescence, come bursts of sexual energy. It is quite normal for a male and female adolescent to feel attracted to one another whom they see regularly.
Admiration here is based on appearance and the fun in playing and sharing. At this stage, having mutual feelings, loving, and being loved are of great relevance to adolescents. Also, as important are learning from mistakes of making poor choices, developing self-confidence, and dealing with the opposite sex, knowing the difference between physical attraction, friendship, closeness, love, and commitment to another person.