Why do slow walkers swerve and drift?

[M A V I C]

Lemon Drop wrote:
[quote=M A V I C]
[quote=pdq]Edit: Also, when you slow walkers suddenly realize someone's catching up to you and you jerk your head around in alarm, should we look at you? Stare straight ahead? Pretend we're distracted by something across the street? I know - we should probably excuse ourselves in a friendly way (for what?), but that's asking a lot for some of us scandihoovians.

YES. I need to know this too!
Why can't basic manners come into play here?
Oh, excuse me! Mind if I scoot by you?
What basic manners are you referring to? I've unintentionally followed people for blocks. There's no real chance to strike up a conversation. Not to mention, by the time this is happening the person is not likely to want to converse. Add in that half of the people have earbuds in, a fair chunk likely don't speak the languages I speak, being on roads where it's too loud to easily talk, and that many people are introvert and don't want a conversation, what would you do? And what would you do if talking to people is too hard for you?