To activate a gift card, visit the vendor's website or call the number on the back of the card. You need the account number and the CVN number off of the card itself. You may be required to supply additional information for security purposes, states GiftCards.com.
Typically, a gift card comes with instructions for activation, along with a website and a contact phone number listed on the back of the card. Both options are generally quick and easy methods for activating your gift card. You may also use these two methods to check the balance on your card at any time, notes GiftCards.com.