There are lots of differences between potty training boys and potty training girls. Boys historically tend to develop potty training skills later than girls.
With boys you will have to teach and show them how to direct their pee downwards using their hand. They will need to master sitting on the All-in-one adult and child potty training seat using only one hand to balance, as the other will need to be directing things downwards, they may find this a little unnerving. It is imperative your child has a fully secure and stable seat platform as it is a well known fact that if a seat or insert wobbles about, it may well put them off.
He may wish to pee standing up, having seen other boys or his dad do it this way. This is fine to try but you will need a step stool for him to do this. Make sure he is facing the right wayand that he is able to hold himself and direct the pee into the toilet. Throwing something into the pan like a couple of cornflakes for him to aim at will add an element of fun, as well as keep his focus.
When it comes to having a poo, he will have to sit on the Family Toilet Seat. It can take a little time for him to get used to the seat before he relaxes and feels at ease to go. This is a good time to use their nature of being easily distracted and either give them a book to look at or read a story or play some music for them to listen to while they are going to the toilet in the early stages.