Question about racial hide/sneak

[Lagaidh]

I've had a few non-rogue toons over the years in live with racial hide and sneak, halflings mainly.

Can someone explain how it works? I understand hide fully, and I understand using sneak to buy from otherwise angry merchants.

Is it possible, for say, a halfling druid to move while hidden while successfully sneaking? If so, then I haven't been doing something right for ages.

With a rogue, I could hide successfully, then get sneak to be successful and I could move along really slowly but invisible.

Does being able to remain invisible under the effects of hide and sneak work for non rogues?