I sometimes go (with a friend) to one of the larger kink events in my region. It's a 4-day hotel takeover kind of event.
What I do is put a temporary tattoo of a dog paw somewhere on my body where its visible, usually on my upper hip or just below a collar bone, depending on the outfit I've chosen.
Most people I've interacted with at the event pay it no mind whatsoever. Some assumed it meant petplay. Once in a bluemoon someone asks if it means what they think it means? I of course throw the volley back and ask them what they think it means.
If they have to balls to say it, we might have a conversation about it. Often, they chicken out and don't say what they were thinking.
Which is fine. I admit nothing, directly.