I see Mormon missionaries all the time here in Taiwan, mostly pairs of young men on their bikes, but I've seen women a few times, too.
Funny story: A couple of months ago a couple of foreign Mormon elders, who must have been all of 20 years old, stopped and greeted me. Instead of introducing themselves with their English names—like John Smith & David Jones—or even with the Chinese names printed on their badges—like Lin Jian-Guo & Gao Jia-Li—they used literal English translations of their Chinese names.
It went something like this:
"Hello. My name is Forest Establish Nation, and this is my friend Tall Auspicious Plum."
That might work if you're Native-American, but for a couple of white guys in Taiwan it sounded completely ridiculous and I had to bite my lip to keep from laughing in their faces.
I do usually stop and chat a bit with them if I have the time, as I'm always impressed by their Chinese ability. In contrast, even after being out for 14 years, I still feel uncomfortable when I see JWs out in service and try to avoid them.