What gimmicks do credit cards companies use to try to get you to apply for their card?

I need 3 or more gimmicks credit card companies use for a paper. Can you please help

Public Comments

1. All of the above plus promising to report good history to credit bureaus low introductory apr (which is raised after a few months)
2. i think these two people hit it on the head
3. frequent flyer miles whn you use the card.
4. Free T-shirt!! (concerts, sporting events, college campus) miles bonus points introductory interest rate 0% balance transfer Cute cards