they're mine, all mine...
I guess one thing that should come across to FOs on this thread is that you just can't please everyone. Some captains like you to be proactive, some like you to sit back, shut up and occasionally read a checklist. The best advice really is to be professional, polite and act (and fly) as you are trained to. This can sometimes mean getting up the noses of Captains who'd rather not have your input and, sadly, that just comes with the job of being an FO.
Please don't be bullied into submission by a Captain who would rather laugh at you for not knowing as much as he or she does than actually teach you something. Said Captain is not behaving professionally and the best stance to take - in my experience - is a sort of benign indulgence as if they are a spoilt child or mental patient. Works a treat for me.