Of course, giving a lady a birthday card may result in a thank you text, but it doesn't bring her back until the guy then gets her on the phone, renews her respect and sexual interest for him, and convinces her to meet up with him in person. That is what is truly important. What she does with her day after receiving the card isn't as relevant as what she thinks about while reading it. The most common mistake men make with cards is that they just send them off without thinking. They pick something out of the mailbox or go to the store and buy it at random. Then they get home, open their mail, and there she sits, waiting for her gift-giving moment. This only makes sense if you believe that a woman wants to be wooed and courted like some sort of princess. She's a human being first, and a woman second. If you treat her like one or the other, then you're going to have problems. The key here is thought. A man should never send a woman a card unless he has done some research on her likes and dislikes. There are many sites on the Internet that will do this for you. For example, you can look up your favorite celebrity and see what cards they have received over time. You'll know exactly what kind of things they like and don't like, so you can use that information to send them a personal message next time they come up in your news feed.