I waited for the first warm weather after they turned 2 then into undies. I didnt wait for 'signs' that they were ready.
A tshirt and undies is all they need when at home so youll need plenty of undies!
I started by telling the child about how when your big your wees and poos go in the toilet, and look mummy doesnt wear a nappy and neither does daddy, nan, pop (we left great nan out cos she was actually wearing nappies by then
). Another EB member introduced me to poo-poo lnad - oh its a wonderful place that all your wees and poos go to ater theyve gone down the water slide in the toilet. And all mummys poos and daddys poos (add however many people as you like), theyre all there in poo poo land and theyre having fun and theyre holding hands. But you know what, they are a bit sad. Why are they sad mummy - cos they miss your poos. Where do your oos go? In the nappy then in the bin so they dont go to poo poo land. All my kids loved the idea of poo poo land. I took some hair out of the hair brush the other day and flushed it and DS2 told me it was going to poo poo land.
So prepare then verbally about what is happening and what your expecting from them. Remind them to use your wee-wee muscle (I showed DS by pushing him gently in the lower tummy to show where the muscle is).
Lots of praise for just sitting on toilet 'any wees yet, no, oh well, maybe next time'. BIG song and dance when they do finally do something on there, ring people (let your child hear) and tell them, make a big performance.
Borrow books from your local library. My library has an online request system so I just seached toilet training and up came 6 or 7 books so I requested them all and would read them to the child at bed time.
Try taking him every 20 minutes (youll still probably miss it!) but they will soon get the idea.