Be vocal. Be charismatic and talk to people.

It's a good question. I feel bad that I can't do more, that I don't have the means and profile to do more. Where I am there's not much in terms of groups and associations, like there are in the US. It's something I think about, wishing to do more to promote atheism and challenge religion. I almost feel guilty I can't do more. That's why I admire the prominent atheist activists and all they do.

I just don't hide it and get on with life and explain how stupid it is.

Don't push Atheism on anyone, but be willing to answer questions.

Don't flaunt Atheism, but make sure everyone knows you are an Atheist.

Be as moral as possible. Lead by example!

I spread the gospel of the Flying Spaghetti Monster.

I try to volunteer in my community in any way I can. There are a few animal shelters near by as well as other local charities. I became an EMT, and I used to do SaR missions. I even donate my time on occasion to a church or two in town.