Two main methods for catching these livies at gold-hook "sabiki" rigs or cast netting. If the latter option intimidates you, that's probably because you're trying to learn a method that's too complicated and/or strenuous.
Tampa Bay charter captain Billy Miller throws a castnet hundreds of time in an average year. He's a big fan of the triple load method—a net tossing technique that eliminates the need to hold a section of the lead line in your mouth (a common element of traditional castnetting).
Check out this video of Capt. Billy explaining and demonstrating the triple load method.