Well, I don't wear my uniform (except to go through TSA where no KCM exsists) but I don't see the harm in introducing myself to the pilots or giving a business card to the F/As to hand them. Neither do I see the problem with informing the lead F/A that I'm qualified air crew and my seat assignment so she knows she has at least one trained ABP in the event of an emergency.

If that makes me a tool as well, so be it.