Definitely one of the signs! I have recently read the "Oh Crap" potty training book and would highly recommend. My little boy isn't quite ready yet but it's really helped me think about the whole potty training thing with a bit more focus.
Definitely one of the signs. My lo doesn’t say anything yet but as soon as she’s done one she will go and get a nappy out of the changing caddy.
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That’s amazing. Bless him!