I agree with everyone above - shoot RAW whenever you can, but also keep in mind some shots are not going to need the extra quality which is why you have the option to shoot jpeg.

"Maybe we can collect some tips here, when it make sense to use RAW?"

As far as noise - it usually only rears it ugly head with levels of underexposure. The more underexposed it is, the worse the noise will be. If possible, bring a reflector to bounce light into the shadow areas - you can always tone it down in post bt it will be CLEANER when you do it this way.

The main point - the more you can control your lighting (under AND overexposure), the better.
-Lew ;-)