You just DON'T double dip a chip
If you're going to stand on an escalator, you stay to the left leaving a clear passage for others to pass on the right
If stopping for a chat with friends you have unexpectedly met in the supermarket, move to the side of the aisle so other people can get past. Do not just stand in the middle completely blocking the aisle and ignoring the stares of death coming your way from other shoppers. This also applies to footpaths etc.
If someone is holding the door for you you take it from then...don't just walk through and let them close it!

Sent from my GT-I9000 using Tapatalk
when pushing your supermarket trolley keep to the left of the aisle. if you see something on the other side dont direct your trolley over there and cut people off and get in peoples way. argh i hate that. i suck at explaining but hopefully you ladies will understand.
If there are lots of toilets free you don't choose the one right next to the one other person in there.
Oh yes, these and.....

When someone lets you in/does something courteous in traffic - please do wave/nod/smile in appreciation!