K.P.
I tried this with my son in the last month or so... he'll "tinkle" on the potty if we put him on it, but when we put the potty in "daddy's bathroom" along with undies and a few books he completely freaked out. So... we put the "stuff" away and left the potty available b/c he wasn't ready to get started.
We'll try again in a few weeks- the best advice I've gotten about this was from my MIL who reminded us to offer it, but don't force it... he'll potty when he's ready and not a minute sooner!