Merlin let the other move and place his fingers around the chopsticks, Arthur's hands over his as Merlin failed miserably at getting the tools to grasp at anything properly. After a little bit though he did manage to snap them together in a way that might just work, and so he reached into the rice container. It was a pathetic amount of rice that he got out, but it was more then two pieces, and so Merlin was pleased - taking a small bite.
"You can scratch that off your list then!" Merlin smiled and set the chopsticks down after taking a bite of lo mien. "I can try and teach you to move things."
It was a little magic, and he wasn't even sure Arthur would be able to or want to learn, but Merlin offered. He didn't see any reason the prince wouldn't be able to. Others learned magic, right? And Arthur was born of magic, so he'd think that would give him some small ability at least.