Be a Gentleman

Yes, women are just as capable of opening doors as men are. But young girls are also raised on romantic movies involving Prince Charming and Brave Musketeers. They equate - even subconsciously - those romantic actions with true love.

To bring out her romantic feelings, go out of the way to treat her like a princess every once in a while. Open doors for her, especially her car door. You don't want to be her servant, but you want to be someone who strives to "be there" for her.