Take a good look at the pilots. Do you ever see them running through the airport? Do they ever run panting up to the ticket counter with their jumpseat tickets? Or scramble to get on the plane?
Never hurry. Ever. This is so important to our professional image that I've placed it at #2, so listen up:
People who are rushed are either taken advantage of not taken seriously. I can provide countless examples of flight attendants scrambling through airports to catch their outbound flights because, for example, someone in some cubicle somewhere didn't schedule enough time between briefing and departure time. Or enough time between segments on a layover. Or whatever.
That's just too bad. Don't rush folks, it's not your problem.
At the same time, make sure you schedule your own time properly and take outside factors into account (like airport traffic) so that you aren't rushed.
There's a great expression out there:
'An error on your part does not constitute an emergency on mine.'
Memorize that expression and live by it.
Don't rush anywhere, anyplace, or anytime while in uniform. If all of us lived by this rule, our respect would increase tenfold.
However...
Don't purposely go slow either, as that will only make you look stupid. Simply take things at a nice, even, professional pace---and this will cause others around you to mold their behavior around your professionalism.
Again, take a good look at the pilots.
Enough said.