Name it Chuck..
I had a little one that really didn't walk around the first 24 hours. It was small, too. I kept it in the incubator with a buddy for more than 24 hours because the others were just stepping all over her, and pecking her horribly.
Even now, at 2 weeks old, it doesn't seem to walk and run around as much as the others. But it eats and drinks, and seems fine other than not being as active.