If you have not used PayPal before, click Sign Up. Sign up takes less than a minute and allows you to use any of the PayPal™ features or use other PayPal™ sites.
If you have both a registered credit card and a confirmed bank account with PayPal™, "Instant Transfer" is the default method of payment when the PayPal Account balance is insufficient to complete the payment.
This default method of payment cannot be changed. However, to fund your payment with a credit card in the "checkout" phase of the order processing, simply choose the "More Funding Options" link under the "Source of Funds" section or "Check Payment Details" page when you are sending a payment. You can then choose the credit card that you would like to use.