You don't. They have to convert themselves. All you can do is answer questions. However, Muslims are to be put to death for converting from Islam. So, I guess you won't be answering many questions from that quarter. 
How would you convert someone to a righous and true God?
You don't. They have to convert themselves. All you can do is answer questions. However, Muslims are to be put to death for converting from Islam. So, I guess you won't be answering many questions from that quarter.