What can cause antifreeze to leak from engine area?

Can I preform the pressure test myself and if so what do I need to do this? Thanks for your reply

Would love to tell you where the leak is, but your description means different things to me. I believe you can purchase a pressure at different parts stores. Then put it on where the cap is and pump it up to the reading it list on your cap,'ie' 13-18 lbs and watch for the leak. Give us a description of where and see if we can help.

Thanks. Me too or I can just see it but will check it out about pressure test at auto parts store. Thanks for your help and fingers cross something easy I can do myself.