86% of Muslims, Hindus, and Buddhists do not know a believer.
(Significantly less in some regions, significantly more in others.)Before you can change the odds on a big scale, try changing the odds on a small scale–a personal scale.
Where are Muslims, Hindus and Buddhists in your city? Do you interact with them on a daily basis? How do you change that? (Who do you buy from, who do you talk to, who do you work with, who do you see?)