What is the smell of neon like?

Neon is a noble gas and because of this, it doesn't chemically react with anything and forms no compounds.

it is the fourth most common element in the atmosphere and because it is a noble, inert gas it is odorless, tasteless and colorless (if an electric current passes through it it becomes orange-red though) and has no effects. The only danger is that if you breathe in pure neon gas you might risk to suffocate because it has no oxygen.

It is used mainly in lighting (as you can see from the picture above) and these could get pretty hot so you could burn yourself if you touch it.

If you want to know more about neon and its properties, here's a really helpful video:

Hope this helps!