Thanks for that, great tips!
DD is 18mths and so far we just sit on the potty before bath time - she runs to the potty as soon as her clothes are off but I think she's still totally in the dark about what she's supposed to do on it! She sits there for a minute, gives a big grin then hops off and into the bath.
We're not pushing her but I'm not quite sure where to go from here so the above is very helpful
That's what we've started doing with our 18 month old, only she sits on the big toilet with a toddler insert. I just hold her legs and let her sit their for a while. She hasn't done anything in the toilet yet, but still tends to pee in the bath.

I'll read the above properly soon.