How to wisely share your personal business cards?

You know, some times business cards are share to people who just don’t care and what they do is that they throw them away. So, how, when and to whom should i share my business cards?

Give them to everybody. A certain percent will get thrown away. That’s life. Cards are a form o advertising. Everyone who sees an ad on TV doesn’t run out and become a customer, but companies still advertise. They make money off the ones who do become customers.