Help: Finishing a "Star"/Lacy Dishcloth

I’m finishing up a star/lacy dishcloth pattern, but the directions are a bit sketchy.

The directions are to knit an extra row(to help with sewing up the seam), but there is no direction to bind off. The directions are to gather the center and sew up the seam with whatever method you like best. I think the extra row wouldn’t make the work look as nice.

For those of you who have done this type of pattern, what works best to finish off the work? Can the seam be knitted? Do I need to bind off before sewing up the seam?

Thanks in advance for your help with this.

A link to the pattern might help. If it says to gather the center, you might do it like ending a hat – run the tail through the sts on the needle like a drawstring. But that’s only a guess based on no idea what it looks like and what you wrote.