Don't totally agree with Oli on his statement that religion tears our world apart. Of course the extremes do, but that goes for other extremes as well. For example, extreme greed has terrible effects (exploitation of humans and natural resources), but there's nothing wrong with striving for financial independence. Same goes for religion I feel. Extremism leads to wars and social conflict, but that doesn't mean that anyone who practices a certain religion is contributing to the nasty side-effects.
I don't mind people who practice a religion, no matter which religion it is, as long as they don't bore me to tears with it. I'm interested as a bystander but refuse to be part of it. I also have a friend who collects stamps and I'm ok with him telling me how he found some rare specimen every now and then, but he knows better than to try and convince me to start collecting too. And back to religion again, among my friends are muslims, hindus, christians and jews, and just like the stampcollector we sometimes discuss certain aspects of their faith, but that's as far as it goes.
I guess what I'm trying to say is that as long as the practice of religion is undertaken in the same way a normal hobby is, by all means pray, chant, hug, share, and have a good time
There's other issues of course like abortion, euthanasia, curcimcision (did I spell that ok?), male-female equality etc etc. From my personal experience though, these are largely cultural phenomena falsely linked as being part of a certain religion per se.
My 2 cents