At risk, but --

The song is "You'd Be Surprised" and it was Berlin's first big hit, and it was later a big hit for Eddie Cantor. It starts: "He isn't much in a crowd, but get him alone, and YOU'D BE SURPRISED." I don't have the rest of the lyrics to hand. Yours, Peter P.S. I think it came back again in one of those fake Hollywood musical films of the 50's, like Singing in the Rain (but not SITR).