How do I use bluetooth?

I am new to cell phones and I have recently bought a SAMSUNG SCH-A930 with Verizon Wireless. My friend told me that it was possible to transfer files/ringtones/data from my phone to his using bluetooth.(without a headset) We would do this by connecting to each others phones. After we connect to each other, how do we send the data through bluetooth, because there is no option for me to send my files through bluetooth. PLEASE HELP!!! Also, I would like to know if bluetooth is free with verizon wireless or if I have to pay for every file i transfer. I would like sources please. thanx