They look like my runners did.
Some will depend on the duck. Marwan has a couple of drakes that are that friendly, you could search for his posts.
Do you give them treats? Be sure they have had some chick grit so they can "chew" the food, but holding peas in my half-closed hand got my runners used to touching me.
I raised eleven (two have passed away), and they are friendly but none like the lap. That was on purpose. I wanted them friendly and sociable, but still mostly bonded to one another.
Also, my runners at three weeks of age became terrified of me being too close, and then we had several weeks of remediation therapy (I literally crawled into the brooder room, and always spoke before coming into sight, and used treats frequently, avoided cornering them - which meant they could run around my hallway while I cleaned the brooder). But they shook that off eventually and now really seem to like my presence. Just don't like being picked up, won't sit still in my lap. On the other hand, when I sit with them, or take a nap with them, some will come up and cuddle up against me. Very sweet.