All right so I just have a question, how can you friend without playing with the person, please can someone help me?
If you know the person's name, use the Add feature in the Friends menu on the bottom right. It's a little person with a + next to them. Then you can just manually enter the player's name.
© 2014 Riot Games, Inc. All rights reserved. Riot Games, League of Legends and PvP.net are trademarks, services marks, or registered trademarks of Riot Games, Inc.