Es sei denn / Unless Fragte / Asked Geben / Give Ratschläge / Advice Sie / You
I don't give my advice unless it's asked for.
Don't give your advice before you are called upon.
Men give away nothing so liberally as their advice.
The advice I would give to someone is to not take anyone's advice.
Age is of no importance unless you are a cheese.
We give advice by the bucket, but take it by the grain.
If you give, you will be blessed.
I would never presume to give anyone advice.
No one can give you better advice than yourself.