All the people downvoting this comment have never had their shit kicked in working the service well and it shows.

Word of advice to the OP: if you are serious about bartending try to get a bar backing job and just learn like most bartenders do. Bartending is one of those jobs where more is caught and than taught. It’s not something that’s handed down to you because you took a 4 hour course. I think if you’re interested in doing some home bartending go ahead and take the class. You’ll definitely learn a few tricks and tips that spark your interest. But realistically? don’t expect to get a reputable bartending job with the certification. Regardless, Best of luck!