It's all in the timing of things for me. Sometimes I've got a connection with only minutes to spare and it seems like the whole world can't move fast enough. During times like these I generally push my way past people blocking the moving walkways or anywhere else without saying a word.

When my connection time is short but there's no hurry I often say "excuse me" or "behind you" or something like that. Usually gets the job done no problems.

Only once have I had to put anyone in thier place, some heavy set women standing in the middle of the walkway resting her weight on the hand rails. Said, "excuse me" a couple of times she glared at me but didn't move. Then said, "excuse me, do you understand english? Can you read that sign? Or do you just think you own this walkway?" Just happened to be good timing with the walk left stand right signage she just snorted and moved over.

Other times I've had so much time between flights I try to take as long as I can getting from point A to point B just to kill the time, no need to hurry up and wait. As a result I've recieved a few bumps from passangers who could benefit from a little of my extra time. Though I'm always aware of others on the moving walkways and escilators and stand to the side if I can.

I think the best thing to realize is that not everyone is in a hurry and to remember that just because you're not in a hurry doesn't mean no one else is in a hurry or vise versa.