When I see a JW what's my reaction ? depends on the circumstances, when and where, and what I am doing at the time, but most importantly, who they are.
Sometimes if I see one or more in a Store say, and I am in a hurry, I will avoid them, having no time for pointless pleasantries with people I have nothing in common with now. If they are people I liked I will make the time to talk, maybe hug etc
I actually "shunned" Bro Pompous and his wife a while ago, they looked at me for several seconds across the aisles of a Store, Sister Pompous with her hand on her hip, ready to give me a lecture, I turned and walked away with my head held high.
Not great behaviour, I admit, but those two deserve it.
I am in no fear as to conversing with them now, I used to be wary, in case I said too much, now I simply say things that challenge them without giving them anything to go and report.
If I see one I do not know, you can smell 'em LOL, I just feel a deep pity for the poor, entrapped mind that sits behind those dead eyes.