Hmm. Well, whatever it is it would certainly have to happen while I was 100% sober .. and awake ...

If Satan allows me to sign a contract to get my money, women, and Trump in a Mexican Jail.

Much like Bigfoot and Nessie, I require irrefutable physical evidence that would withstand the rigorous scrutiny of science. Nothing else would be sufficient for me.

I think I could believe in God easier than a religion but not God as we know it. Do our pets think of us as Gods?

Good question, I really don't know but an omniscient and omnipotent being should have no problem making me believe.

I couldn't care less if God came down from the heavens, and professed to be the second coming of Jesus. I would only ask him, 'if you truly are a benevolent god, then why did you create beings who have to feed on other living beings (your creation) to survive?"

As most have said: evidence. However, just because god proved to me he/she/it existed, doesn't mean I would want any part in following/worshipping him/her/it. There's a lot of evil in this world that god would have to explain before I even considered supporting such a being.

I would believe in a god if it presented itself to me in no uncertain terms. Like I believe in gravity.

As Bill Nye said - evidence. And none of that "god is in a baby's smile" shit. Actual peer reviewed evidence.

Waterboarding would get me to say it, but short of scientific proof, I would never believe it.

Nothing - there can't be proof of something that does not exist.

Same things that makes me believe in France or Radio-waves or anything.
Credible proof - ideally him (her?) making their holy text appear in the hand of anyone who asks, written in their own language. Wouldn't that solve every question about the right god and the right version of that god's holy book? (Question for believers - why not do that?)

if he put a new paint job on my truck , it needs new paint

It would take a lot more than turning water into wine 2000 years ago. a great party trick, but no more. I think the real question is if god finally showed up, why would anyone worship it?

Evidence... Believable evidence is all it would take.

I've thought about this before. At the very least, I'll tell it this, "I'll just keep asking for evidence and for us to define our terms: what makes a god a god and not just a being with better loot and skill-trees than me." I'll Tom Sawyer that som'bitch: If you can paint my fence without using a brush, I'll be a little closer to "believing." If a god is simply something with more capabilities than us as a species, then you get your win, buddy. You're the fart that pooped gold, now go god somewhere else. That's the thing with questions like these, when you say "god" what exactly do you mean? If anything we still have to work on the premise of this discussion.

that is a question that I have no ready answer to BUT if there is a god HE will know

Maybe a stroke or brain cancer. My late wife had a brain tumor but her atheism had been ingrained since childhood and she sent a message of "no tears and no prayers.
This is the real world and there is no magic or supernaturalism!

Nothing! There is on endemic evidence in the existence of a god or gods. They are a construct of the human mind, looking for explanations for the world around them, mostly in a pre-scientific era. Unfortunately, religious organizations have become so rich and powerful that they keep brainwashing people, especially children, into believing that there is a god, and that science, (which is provable), is the lie.

Depends on what you mean by "god". If we are talking about that which brought about life we have to ask we think life came about. Or do we really know how life came about? We have theories.

"It" would have to appear in a visible form to me. Then I would believe "it" exists but I'd have quite a few more questions and complaints.

Undeniable proof.

Suspension of independent thought

There's an important difference between belief and worship at play here. If I saw a god appear in the sky, and so did everyone else, and there were no other logical explanation, then I would accept that this god existed. If this god were anything like the God of the Bible or the Qur'an, then that God does not deserve to be worshiped.

Well if God was real when people pray things would happen but they pray after a disaster. I.f God was real there would be no need to pray because the disaster wouldn't have happened in the first place. He is supposed to be all caring and loving but look at the world.