Yes! Part of you wants everybody to see your diapers, while the other part of you is scared to death that someone will see your diapers. I think for me--and probably lots of others--that this is the source of the thrill.
I wear thick cloth diapers and plastic pants, usually under fairly tight sweatpants or, in warm weather, under shorts. I have one pair of white mesh shorts with no liner and--depending on which plastic pants I wear, if you look closely, you can see them plain as day. (The best pair for this is my pair of pink sissy pants!)
I use suspenders so that, as I soak (and sometimes load) my diapers, I won't have to keep pulling them up. But as the get more and more wet, they start to droop and become increasingly obvious.
And that's what I love. I will dress up this way then head out to run errands. The store, buying gas, the bank, etc. I always do this in the mornings around 9-10 because there aren't many men or kids out then--just women. I always have a drink on hand so that I have to wet a lot. Then I start putting myself into increasingly "dangerous" situations in terms of them noticing my diapers and let nature take its course.
And I've had many embarrassingly thrilling experiences this way. I hear people giggling behind me. Once I was in a K-Mart and heard a woman say "Yes, he definitely is!" and looked and she and another person were staring at me.
As time goes on I get less scared and more daring. On a few occasions in the summertime I've actually taken off the shorts and gotten out to put gas in the car, mail letters, buy drinks from a machine, etc in just a t-shirt and diapers. Once I was putting in gas and a van pulled up and a high-school aged girl got out and came over and asked if I could loan her a few dollars for gas. There I was, standing there in a t-shirt, wet poopy diapers and plastic pants talking to some girl! It's funny, but once you know you're caught it's as if the fear just goes away and you feel this overwhelming feeling of freedom and joy! Then you get to go home later and--let's just say--"enjoy" your diapers while reliving the experience.