I will always talk to strangers... tell a lie, sometimes since dh died, I have to pop to local shop when just want to cry,, then I scoot in and out with head down
fortunately that does not happen often, so I will speak to anyone,, I don`t approach someone if they look as though they don`t want to be spoken to.. well not everyone does, I will tender a quiet hello, and pray, silently for them
compliment someone I don`t know?? of course, why not? however, I am basically shy, so if someone compliments me, and I have received some, I cringe!