смышлёный парень(a clever person who makes good decisions (Cambridge Dictionary): "I'm in San Diego. I've lost her. She slipped away while I was taking a nap." "I just knew I'd picked a smart cookie," he said unpleasantly. (Raymond Chandler)ART Vancouver)
умный парень(a clever person who makes good decisions (Cambridge Dictionary): Goble turned his head slowly and looked at me. "I thought I was a smart cookie. I learned different. All I want is back to Kansas City. The little guys can't beat the big guys--not ever." (Raymond Chandler)ART Vancouver)