Say, "Wow. You are SO MUCH like the Pharisees and Sadducees that Jesus criticized so harshly."

I have a sign at my gate that says "I am an atheist. I do not want to be saved. Move on, Thank you!" Used to have another sign that said "Religious representatives and related propaganda are not welcome." Both work but I like my new sign better.

Tell them you are not going to donate any charity to their church fundraisers and they will quickly run from your doorstep to your neighbors when they realize they are wasting their time.

In a case like this I'm likely to use my sexual orientation to frighten them. I'll work a reference to my husband into the conversation. Since I am male there is a 67% probability their head will asplode.

Here's my method. "Lo siento. No hablo ingles". If they speak Spanish "Ich kann nicht sprechen duetsche". German? "Wo bu shou zhongwen" Mandarin? "Je ne peut pas parle l'angais" French? "I don't speak English, then walk away 'cause I'm all out of tricks.

I tell them that I worship satan and I ask if I can eat their children. always fun.

"No thanks". Then ignore.

Roll on the floor laughing so hard you eyes start to water. No seriously, it depends on how they are towards you about faith and religion. I may have stated this in another post but I have a few friends that religious and they range from born again to moderate. I really don't communicate much with them but not because of their religious beliefs but because we have all just sort of drifted apart over time.

Depends on who it is. I am not a confrontational person so most of the times I roll my eyes when it starts and then tune it out. On FB I block a neck of a lot of pages.

Don't give them the time of day. Turn your cheek and IGNORE them. Is this rude? It's rude of them to shove their feelings down your throat!

Either walk away, or put on headphones and listen to something worthy of hearing. If you’re the type that has to engage, I would not suggest insulting them; instead use reasoning and logic with the type of questioning and mannerism that paul1967 suggests.

being rude and mocking works

Carry around flyers with bullet points explaining why God isn't real\the bible is a horrible fairy tale they contradicts itself, list those contradictions. I had a religious roommate in college and she challenged me to read the bible. I read the whole disgusting thing. And made a power point with over 1000 reasons why the bible sucks/there is no God. It was great but on a floppy disc somewhere. Wish I knew where

laugh at them

Just walk away and if you can't do that just ignore them. I personally love that type of conflict. I just keep my cool and ask the same questions I've asked every jerky Christian, Why do you believe and how do you know you're right. It always leads to faith and once you get there it's a simple matter of showing why faith is a terrible way to know anything. You won't convince him but you might have someone else listening that might be convinced. The big thing is no matter how angry and nasty they get you need to stay cool and non-threatening.