The occurrence of sensory stimulation basically this part of perception process involves in contact with a particular stimulus. The world is full of stimuli that can attract our attention through various senses. Thus we are able to describe systematically the sights, sound, smell and taste that populate our conscious experience. Stimulation includes selective attention and selective exposure. Selective attention occurs by anticipating fulfill needs and prove enjoyable . For example, friends talking to you but you were daydreaming. You won’t hear what they are saying until they called out your name.