How-To Guide: Activate a Gift Card and Create a PIN Jul 23, 2013 · Your gift card may work similarly or may be entirely different. Up first, I will show you how to add a PIN to a $200 Visa Gift Card. All you have to do is go to the Gift Card Mall website and click the Update Card PIN button. Enter your gift card’s number, expiration date, and CVV code on the back. Now you can create any 4 digit PIN you want.