When I fly economy, one of the flight attendants will usually approach me shortly after take-off, and tell me that I am a valued Gold member and to let them know if I need anything. I've even had FAs wake me up to tell me this.

It's usually a bit embarrassing, as people around me hear the conversation and probably wonder why an economy traveler is getting special treatment.

My question is, how do people take advantage of this / what kind of perks are on offer? Compared, for example, to anyone else just using the call button and asking for something.