How to Make a Simple Hummingbird Syrup and Feeding Regimen, that Works!!?

I have a lot of Berylline Hummingbirds that visit my yard and I have begun feeding them. I think of them as my little friends! They don't seem to know that I'm putting food out though, as I've never seen them eat from the feeder. I have a lot of flowers and they are always at my house though. I put sugar water in the feeding. Is there a simple way that I can get them to come eat from the feeder?