[Mr.Kurd]

See Firstly: go to his/her house.
Then: Ask him/her to give you the wifi password.
After That: If he/she gave you the password then completed but If not, Start kicking and hitting them until he/she give you the password.
Finally: Go and Enjoy

Ahh like Ender said wifiphisher is best choice.

Please tell me you are trolling...

Actually wifiphisher is a best choice because you can make a fake wifi like a keylogger.
And that above isn't troll, you can try it yourself if it didn't work, you made a mistake somewhere so be careful with the first way .