Assembling seed stitch?

At long last, I have finished the pieces of my current project, a baby blanket in 5 strips and all the edges that need to be assembled are in seed stitch. And the day I finished the baby was born, so now I gotta assemble lickety-split before the kid goes off to college!

Do I need to know anything special when I assemble? I have assembled all manner of garter, stockinette and ribbing, but I’m not sure what to expect with this one.

Thanks!

Just seam it like you normally would knit and purl, just alternate.