First of all make a choice, what are your priorities for a credit card, because there is a difference in the acquisition of the two, the secured and the unsecured one. Few things require a deep consideration before you actually apply for that. A credit card company is interested in knowing, debt to income ratio, before issuing you a card, so it goes must to look at the other side of the picture. You will have to boost your take home pay. A higher take home pay reduces the chances of getting default.

If, your take home pay isn’t sufficient you can go for another option that is opening a savings account in a bank. Accumulate it with all you extra money you can spare, from your each paycheck. Then ask for a bank to open a Certificate of deposit from that deposited money.
 
Ask the bank to provide you a loan against the Certificate of Deposit. This Certificate of Deposit will work as collateral for your loan. Pay off the loan earlier then it is scheduled.  Ask the bank for another loan but without Certificate of Deposit as collateral. If a bank is reluctant to do so you can make a call to a credit card company for unsecured credit card. If they also refuse your application you just withdraw all your money from the bank account, use it to take a secured credit card. Secured credit card ensures that you can put some money to open it before they actually put their credit in.

You can issue more and more credit by making timely payments on your secured credit card. Now you are with the choice, either keep this credit card or you can use this credit scoring to call for an unsecured credit card.