I don’t put them out unless I’m cool with not having any. Otherwise, I’ll only bring enough for myself and keep them in my purse, or I’ll mention that I have some gluten-free cookies if anyone is gluten-free and would like one, but I keep them with me and don’t put them out. I don’t really care what people think of my doing this. They can grumble about my stinginess over their plates and plates of gluten while I have my one or two cookies.
Bonus: if I don’t put them out, they can’t get cross-contaminated by idiots who want to “consolidate” and put the gluten and gluten-free things on the same tray.