The dough should feel slightly tacky but not damp. It should not stick to your fingers. Dust your work surface with flour. Remove the dough from the bowl and knead for about 2 minutes.
Why are my dumplings sticky?
Apart from that, there are other two common reasons that the dough will be too sticky: the dough was too warm when you started, or you're in a place with high humidity and temperature. If you're noticing that your dough is too sticky, you need to use your own judgment to figure out the reason.
What if my dumpling dough is too sticky?
Turn onto a lightly floured surface and knead for just a few strokes. If the dough is too sticky, knead in flour a teaspoon or so at a time. Divide the dough into two portions and shape each portion into a thick log.