Quoting momma melissa85:" <blockquote><b>Quoting applelove:</b>" this is the sign for bathroom(common used for ... [snip!] ... Do you shake the sign or do it with a still hand? I'm afraid she will play with the potty in the living room. Thanks "
You shake, there are different challenges when starting at 12 months. So that is why I can not offer that much help.
Babies are pretty good at just going in the diaper if you can't get them to a potty after you start. My LO sleeps in his diapers and sometimes will go in them if I don't take him soon enough.
Now when you are first starting any time you use the bathroom (if you bring LO) make sure you do the sign and say the "word", what ever key word you choose.
My lo stopped using the potty for number 2 at one point, this is because he like privacy when he goes number 2 now and he can not use the potty alone. So when he goes number 2 in his diaper I still say our key word and do the sign. Then he comes over to me and I change him.