I love having the door opened for me.
Whenever a man opens a door for me, or even waits two seconds longer to hold the door so that I can enter, it makes me feel special. It doesn't matter if the guy is a friend or a stranger, an obvious gentleman or... less so, but the message communicated to me is clear: "You're a lady, and I'm a guy. That's a door, so I should open it for you."
Which leads to my point. When a man opens a door for you, never, ever, forget to give a friendly "Thank you!" It certainly was a bizarre movement of women who decided that they should snarl and snatch the doorknobs out of men's grasps before they got a chance to perform their honorable duty of door-opening. As a result, many guys today are under the false impression that all women are like this.
As ladies, we have the responsibility to encourage males to earn back their roles as knights and gentlemen. We are not to hit them over the heads with our mission statement. But we are to smile and behave graciously whenever some guy, who may believe he's risking life and limb by this action, does an uncommon act of chivalry for us.