You should be certain that this is the right time to potty train a child otherwise it would a waste of your time and effort. You do not want to make things worse, so you should be sure that your efforts will reap fruit. In order to be sure, you should look for signs as children who are ready for potty training often lower their pants in front of you.
After you start getting indications from your kid, you should try the nearest store and buy an extra pair of pants, a jar and a potty chair. While doing this, if your child points out at a spotty chair, you should consider buying that for him.
Make sure that your kid sleeps in his underpants at night and place his potty chair next to yours in the bathroom. Remember that you would have to give more time to him during this process.
Whenever you think suitable, make your child sit on the potty chair several times a day especially in the morning and after every meal.
You can also offer him a candy every time he sits on the potty chair as this will keep his interest. Let your child do whatever he wants to do as this will give him more control and confidence in doing the bathroom.
After he is done, wash him properly and take care of his hygiene.