There are two types of EMV (Europay, MasterCard and Visa, a global standard for inter-operation of integrated circuit cards):
Chip and Signature
With a Chip and Signature card, you use your signature as verification instead of entering a PIN. With a Chip-and-PIN card, you will need to enter a PIN as you would with a debit card.
Chip-and-PIN is the more secure of the two as PINs are much more difficult to crack compared to signatures, which are easily forged.