Hi everybody what's up?
The slang of today is "dare una dritta".
Letterally you could translate it with "to give a straigth" but I know that's meaningless for you so would be better if I'd say "to give you an advice", sounds good.
The word "dritta" is typically a Roman slang and is more than an advice.
If someone says to you "ti do una dritta", he's giving you a sort of secret or something that usually people don't know. For example if you ask someone how to get to the station, normally they give you usual directions, he's giving you an advice, but if someone tells you a way to get there earlier, well he's giving you "a dritta".