How do you teach a 1 1/2 year old that going potty is good?!

Ok for the last month or so, Bradley has been going potty at least once a day, fairly consistently. I dont' think he understands how incredible this is. I just don't know how to explain to him that he's doing so well. Everyone I talk to about it says that there is nothing that you can do for a kid this age. (Which is apparently why kids don't normally do it this early.) It seems to be sticking mentally though. He'll go in and sit on his little potty at night before we brush his teeth. And he usually goes at least a little bit. It's harder during the day because he has tons of distractions, and it's usually not at the same time. But when it's time for "aahh" (brushing teeth), he runs in and waits for you to take off his pants and diaper and set him on the potty. We usually do "aahh" while he's sitting on the potty just so he can't run off. And he says "Yay!" almost every time he goes pee. So, I think he understands that Dave and I are happy about it and therefore, he should be happy too; I just don't know how to help him develop this new talent of his.

On a different subject, Bradley is picking up words left and right. Dave and I have both noticed that he seems bored with simpler words like "pot" or "pan" and more interested in the 2 and 3 syllable words like "barbeque" and "flower". He tries real hard and watches you when you say it and then tries as hard as he can to immitate you. We have some birds that are making a nest in our carport and every morning he comes out with me and points to them and says "Bir'". It's really rather adorable. I went next door the other day and Dave was playing with Bradley. When I came back Dave said that Bradley had been walking all around the house calling me. But he wasn't saying "Mama or Mom", he was saying "Jess". It was cute but I kinda felt bad too. I don't want my kid to know me only as "Jess". Fortunately, tonight when I walked away from Bradley and Dave, he started calling for mommy. (That's me :) ) I don't know how to keep up with everything this kid is learning!!!! He's growing up a lot faster than I was planning. ( I think he's growing up a lot faster than most of us thought he would.) Before long, he'll be telling me what the most logical answers to life's little mysteries are and I'll just sit there - dumbfounded. I guess that's what I get for having a kid.... But I don't think I would change a thing.