How do I move to the overlay in row 6 from the initial stitches in row ?

I apologize if this is a really silly question but I'm working on this shawl pattern and I completed everything through the first (green) 6th row but I am completely unable to understand how to then move to the second (grey) 6th row which would be an overlay on the green row. The instructions are very sparse but they said to pay attention to special colored stitches but failed to explain in what context. Red is obviously the middle stitch but I assume the two blue FTDC's in row 5 probably have something to do with this but I am just baffled as to how. Do any of your happen to know what I am missing or what I need to do next? Any help would be greatly appreciated. Thanks so much :)