Well, women say that chivalry is dead. I am looking to put a stop to that sentence, and revive chivalry. Of course, it takes effort from you guys as well. So, how hard is it to be a gentleman? Not so much, in fact, I'm going to explain it in a few simple steps...
First of all, know the basics, like opening a door for a woman (and even other men) if you're closer to it. Always open the door for her when she's entering and exiting the car. If there's a big step down, help her down by holding onto her hand for her to put some weight on you.
What else can you do? If you're in the street, always walk besides the cars. Why? It used to be done because pots would fall from buildings, so it was better for the man to be injured than the woman. Also, in case there was a car crash, you could push the woman out of the way on time.
Never, ever, EVER swear in front of a woman. And your superiors, for that matter. A real gentleman would rather die than swear in front of a dame. Also, never break your promises. A wise gentleman only gives those he can keep.
Also, remember grooming. A chivalrous man shall never, ever appear as if a dog just chewed on his clothes, and smelled like the dog pissed on him afterwards. Big no-no. Remember to be constantly mantaining your appearance (don't get obssesed and go metro either).
One last thing, always defend your and your lady's honor. Of course, you shall always have your dignity, but if your rival strikes a blow, then make sure you only need to return one. Do not ever walk away from a fight without giving the other what he deserves.
So, there's still a lot to learn, but you can start with these small mannerisms, and you shall be a true gentleman. Just remember to practice, and you'll get better and better at it. So, go out there and bring chivalry back to life, chap.