When you are traveling through airports, train stations, hotels, etc. there will often be situations where you will be on an escalator or a moving walkway – treat it like you are on a highway and move to the right if you are standing still so people can pass.
You aren’t in a rush and that’s fine. But don’t plant yourself in the middle of a pathway and block others from making progress.
If you block the ability for others to pass there are two reasons: you’re selfish or clueless. Don’t fall into either of these categories.
These public spaces are not your domain. They are for all of us, so quit blocking them.