What are first person and third person?

the first person is talking about you .
You only use Us, I and We.
And you only use it when you're talking
about yourself and you including other people.
For example: We went to Burger King.
or I went to Mc Donalds.

The third person is when you're talking
about some else not includeing yourself .
You only use them, her, him, she and he.
And you only use it when you're talking
about someone else and you're not included
to it.
For example: She went to Burger King or He
went to Mc Donalds.