Point of view can be determined by the words you use such as I, my, he, she, and you.
You can identify first person if the story uses the words such as "I". It's like you are having a conversation with a person and they are telling you about a certain thing.
Second person uses he and she or names.
Third person is as is someone is talking to you and telling you what you're going to do or did.
Hope this helps. ^-^