Answer:
First person is the "I/we perspective" and refers to yourself or a group including yourself, and uses words such as I, me, my and so on to indicate it.
Second person is the "you perspective" referring to someone else and uses words such as you, yours, yourself and so on to indicate it.
Third person is also referring to someone else, but instead it's from the "he/she/they perspective" and uses words such as he, she, it, they and so on to indicate it.
I hope this helps :)