Write a letter to your friend inviting her for your birthday celebration
Hope this letter finds you in good health. Next weekend I am having a small get together at my farmhouse to celebrate my birthday with my close friends. You are warmly invited to the party. I have planned a lot of games and activities followed by a book reading and a movie thereafter.
Please be assured that the party will be supervised by my parents and all the guests will be personally dropped home after the party.
Hope to see you there!