My brother, can we not apply a little common sense here? Be nice to the kids, give them candy, compliment their costumes, be friendly to the parents, and give them something spiritually edifying as well.
This is all fitting behavior for a Christian, but what separates the last bit from the rest is that it's an overt advertisement for your faith, whereas the rest is a good demonstration of it. If you live in a small neighborhood, don't you think it's better if your neighbors think:
"Oh, the Pattersons, they're really nice people. They're some kind of Christian, aren't they? Maybe we should invite them over for dinner to get to know them more."
"Oh, the Pattersons, they tried to hand us out some religious tracts, during Halloween of all times! I don't want to have anything to do with those weirdos!"
Granted, it's possible that your neighbors will receive the tracts well, but I would much rather err on the side of caution. This is a secular society, and many secular people have been burned by religion. If they witness such overt proselytizing, they might be seriously turned off.
On a personal level, I just don't find it appropriate to hand out religious tracts to people who are coming to me for entirely different reasons. And I would feel uncomfortable receiving such a tract, even if I shared the person's faith.
Maybe you can print out icons to give them. Maybe you can write a tract like I did. Maybe you can simply say "Be safe, and God bless you." Whatever. We don't have to engage them in a discussion in an effort to convert them. We don't have to "sneak" anything in their goody bags. That's not what I have advocated.
I have no problem saying "God bless you" to someone, and if I had icons hanging where you could see them from my doorstep, I would not feel obligated to put them down out of fear of offending someone. But these are very natural things; they don't come off as forced or awkward, like handing out a tract is in most situations.
Also, my apologies, I didn't mean to accuse you of underhanded tactics. I'm projecting what I experienced with "tract-stuffers" growing up.
For goodness sakes, have we gotten to the point where we are afraid to share the Faith from our own doorsteps? Yes, some people will inevitably be offended anytime we share our Faith. The Gospel itself is an offense to those who are perishing. And yes, we should be diplomatic, kind, and tactful in the ways we promote the Orthodox Faith. And I think Halloween is a great opportunity to tactfully, kindly, and diplomatically share the Gospel. But that's just my opinion.
I can appreciate your approach to this, and I honestly wish you and your family God's blessings on your evangelism. However, I think there's a wide divide between hiding the Faith and handing it over to someone who doesn't necessarily want it, at least at the moment, on a platter.