Teach them first how the pieces move/capture. Them ask them to solve capture problems. Knight capture problems are enjoyable. An example of knight problem is, they can capture a pawn with their knight within 3 moves.
Then teach them how the game is won by checkmate. Teach them about castling, and the importance of castling.
Tell them the value of pieces like Rook is stronger than Knight/Bishop.
Most people enjoy solving mate problems. So show them first simple easy mate positions. Then after that ask them to solve easy mate problems. Show them tactical motif like pin, fork, double attack etc.
You must have plenty of tactical resources. So I suggest you get books like this http://www.amazon.com/Tactics-Chess-Games-Everyday-Players-ebook/dp/B009TBYA7U
http://www.amazon.com/Chess-Tactics-Champions-step-step/dp/081293671X
Hey, I am 20 and no there is no chess club around my area, but it still a big city. I want to make one, But I just don't know how to teach people chess. I only play OTB and I beat every OTB players I met ''for some reasons'' Just one lose against an official 1900 player. How to spread chess love, how to teach people this art ?