You shift uneasily as you hear the unearthly wail coming from the other room, one born of great grief. You struggle with whether you should go comfort your friend, but you fear intruding. (Number the Stars)
First person
Second person
Third person limited
Third person omniscient
Second person POV's are when the action of a character are written as though the reader is personally experiencing what is happening. (usually using you pronouns)