You sure of what your name is   You sure of where ya live   You know how much you make   Ah, you know how much you give   You know where your house is   You know which road to take   Ah, but you're sure `bout lots of things   Look out there's one mistake      There just ain't no doubt   There's just one thing you're never too sure about   Never can be too sure about the girl   Oh, you can never be too sure about the girl   You leave her there, when you get back   She calls you Bill, when your name is Jack   Never can be too sure about the girl      You know about the truth   You can see it in her eyes   One thing you know about love   It'll cut you down to size   You hear what they tell you   Do you do what you're told   And if they say yes --   Does it mean it's really so?      You're ready for the thrill tonight   You think you'll take it slow   But she's forgotten more, boy   Then you will ever know      She calls you up in the middle of the night   She says she's lonesome and alone   You're all revved up, finally some place to go   You knock on that door --   Nobody's home      Never can be too sure about the girl   Oh...you never can be too sure about the girl   You leave her there, when you get back   She calls you Bill, when your name is Jack   Never can be too sure about the girl   Oh...you never can be too sure about the girl   She'll drive you crazy...oh...girl