how did you potty train a boy

Al

so i have my 2 year old cousin with us for a few weeks as his mom is dealing with her oldest son in the hospital... my cousin will be 3 in october and hes showing signs he's ready to be potty trained he talks and tells you AFTER he goes potty or poo in his diaper... i want to try to pottu train him before he goes back his mom has been struggling with this too as shes never gotten the chance to raise any of her children so shes new to all of this... i have a potty chair and one that also goes on the toilet seat.. i let him decorate the potty chair with stickers so he gets comfortable with it and i have bubbles and stickers and candy all that stuff as a reward but it dlesmt seem to be working any advice will help also there are no boys or men that can help us with this...