<human>: Can you condense the text into a few key points?

I'd like to bell train my dog.  Basically, she's inherently figured out how to get my attention when she wants or needs something, but it's a super obnoxious method.  She comes up and pants in my face/paws at me.  Typically, I get up to get out of her reach/ignore the behavior, but then she runs to her water bowl or the front door and I realize she needs something.  She used to be much worse with this behavior (it was used for "PET ME NOW" and "PLAY WITH ME NOW"), but she has abandoned these instances.  I like the fact that my dog communicates when she needs something, but want to give her a more positive/less annoying way to do so.  So, figured I could at least bell train for going outside.  I think she would pick it up fairly quickly (unfortunately, she's smarter than me).  So, this being said:

-  Any recommendations for a specific type of bell or a specific brand?  In doing some internet searching, it seems like there are two options: something that hangs on the door and something that sits on the floor.  Any preference for one over the other? (I'm leaning towards something that hangs since I am not the most graceful)

-  Any hints or tips for the actual training beyond the basics that seem to be universal to every guide/commonsense?

- Any way to avoid her using it to get outside every time there's something interesting in the hallway or outside?
<bot>: want to bell train my dog.  Anyone got a hint, trick, tip, or warning?  An opinion on the type of bell to be used?