Nomes are about 2/3 as big as normal humans. Despite of this fact they are pretty much human like about their physics. They tend to wear hats besides of their normal clothing, which is pretty human too.
Nomes do live in trees, where they insert their houses in a Tree-Warping. Aside of this they are organized as humans: They have a village chief, every inhabitant has some type of job, even if some of these jobs are quite odd for human measures. They do have many human cultural features like marriages and adoptions. They wear clothes and have been observed smoking pipes.called
The basement Nome society was run by a hereditary Nome King before they were driven out.