If someone came up to you (an atheist) and "May God bless you in all that you do!" with just the intention of thinking of you and being friendly how would you react in your mind?
I would probably laugh really hard. But then you have to understand that this is something almost *no one* but a priest would say where i live, it would just sound ridiculous coming from anyone else

If it wouldn't come from a friend which i'd know to be a devout christian, most people here would probably think you're deliberately making a joke. Not just atheists.
However, once a muslim friend told me she would include me in her prayers. I knew she was serious, and i remember thinking along the lines of "That's nice, i guess, but why would she do that? Does she think anything's wrong with me of my life?"
Also it's really hard for me to come up with anything to say back. Somehow a simple "thank you" would leave me feeling acknowledging god, on the other hand anything else would leave me feeling being rude to someone that means well...it's making me feel uncomfortable. I would compare it with instead of money getting a voucher for a store i never shop in
I am not trying to make a specific point, just discussing, learning from your perspective. What I am trying to get at is our perception of reality is really only dominated by our human senses, and that there is more to the world then just our reasoning and logic. Our reality is a millionth of what actually is, science proves this with the electromagnetic spectrum and many other sources.
No. Absence of proof is not proof of absence. We don't *know* how much we don't know. Every new finding in science increases our knowledge, but it doesn't let us make an estimate of how much we don't know.
Now I say, if there is a possibility that we don't know everything, there is a possibility that there is a God.
Yes, in the same way that there is a possibility for the tooth fairy and unicorns. Everything is possible until outright disproven. But if something is not disproven it doesn't mean that there is a 50/50 chance for it.
Are you not sure that there is a God, or disbelieve that any god exists at all?
I see no indication for the existance of god or any other supernatural phenomena, hence i do not believe in them at all. A god like the christian god, who is described as interfering in our lives at the most basic level is just too highly unlikely to consider. A being as powerful and complex as would be needed to do all the things christians claim being done by him couldn't possibly be the god as described in the old testament. The only thing i see as *remotely* possible would be a god that has never and will never interfere with the universe or us. But then - why bother believing in that?
In your eyes, is there a third eye, spirit, or inner sense of things?
No, as i do not believe in the supernatural.