Example 1
You can trust your career counselor to advise you about jobs, but you probably shouldn't ask him for medical advice.
Example 2
Uncle Mort gave me great advice at the dog track. I won fifty bucks!
Can we borrow Uncle Mort come Super Bowl time? In this sentence, advice is the right word for the job because it refers to guidance.
Example 3
I need some advice about where to bury a treasure chest full of gold and precious jewels. Is there anyone here who could advise me?
We'll do it. You can absolutely trust us with your loot. Here, the speaker is looking for a recommendation. That's a thing, so the noun advice is the correct word. Then they're looking for a person who can satisfactorily complete the action of giving a recommendation, so the verb advise is the way to go. Now back to that treasure chest…