Human sexual activity and  human sexual practice behaviour is the manner in which human experience and express their sexuality. People tend to engage in variety of sexual acts thus leading to activities done when alone (e.g musturbation)and acts done with another person(e.g sexual  intercourse, non penetrative sex and oral sex).

Sexual activity results to sexual arousement and physiological changes in the aroused person. Sexual activity may also include conduct and activities which intend to arouse the sexual interest of another person for example: personal interactions btwn individual, therefore sexual activity may follow sexual arousement.