Yes, we agree with TJ - if you can't see the faces it's not cool.
Maybe we've been lucky so far but it's almost always the case where we go that the chaps park up or dismount and mosey on over.
There is by the way a group known as kent-biking-doggers who operate around Medway who dog exclusively on bikes. Very jolly lot. Find 'em with a search engine. groups
BEST EVER
Interesting stuff here,
So on the south coast, the done thing is to get out and wander around on foot, whereas here in Birmingham, if you get out before it's obvious that you're "accepted" by a couple, it's viewed as intimidating, and couples tend to drive away. (A point to note for southerners visiting our area)
"Safe Distances" - well the "one and a half times the width of your vehicle" rule seems common here. Far enough away not to evesdrop on conversations but not so far as to look disinterested. Again, here, its up to the couple to signify when they are ready before doors open and people walk closer.
Problem is that one and a half times the width of a motorbike isn't a problem to the bikers when they park in "your" gap. They can be one and a half times "their" width away, and sod you, sort of thing.
By the sounds of it bikes lend themselves to the dogging styles in some parts of the country more than others then.