do you have tips on potty training an 18 month lil boy?

Well, you could buy a small tolient, or "Baby toilet", and have him potty train on that. Each time he goes on that, give him support. "Good! I'm so proud of you!" Each time he doesn't...DON'T punish him, just say, "Ok honey, please try to go on the toilet next time."

Hope this helps!
(Also, if you want, you can tell him that he will get dessert or a treat if he goes on the toilet.) I think that this way is effective.

Try this little trick, I used it for 2 of my boys. Put some cereal in the toilet like Cherrios. Tell him to aim and shoot the Cherrios. it became a rush to get to the toilet for my little guys. It made going to the bathroom fun for them.

when my daughter was a little girl. i bought her a potty if thats what you call it. if i remember it right its a chair with whole in the center. the chair is really attractive the color and the print. she loves to sit there. i always sit her in the potty every after meal. so she will realize how and when to use it.