Kind of sad to hear this. On the 756 in EWR we just don't fly a lot on reserve. I always brief that I'm new, don't fly a lot, and I welcome any tips or techniques the captain wants to share. Everyone has been great so far, and in fact on my last trip the captain offered both legs just so I could get the reps.
Everyone here is very welcoming and I see the captain as a resource to learn from. Helps pass the time and add different techniques to my bag of tricks.