Exactly what she said!
Potty in the lounge with 2 days of nothing on the bum for easy access, then third day with pants and trousers. 3 full days at home with driver chart, start by showing YouTube video , let him choose which pants to wear and I showed him a pic of his friend in pants to show that his mates wear them etc
Basically exactly as Laura said but he only uses a sticker chart at nursery. At home he gets a small treat sometimes. I will say if they are ready it will be really straight forward. We tried a few months before and he just wasn't getting it.
Naked on the bottom half for a few days in the house. Reward chart with stickers or raisins (or a small treat). Keep asking if they need a wee. Lots of praise. Don’t put pull ups on, just go with knickers or pants and lots of spare clothes. This is just what worked for us ☺️