In Action Comics #20 (November 1939), Superman discovers that Hollywood actress Dolores Winters is acting rather strangely the day after acting so nicely to Clark Kent. After Dolores gives him the stink eye, Superman makes the intuitive leap that the Ultra-Humanite has placed his brain inside Dolores’ body. But it’s comforting to know that Superman now has super-intuition!
(Decades later, the Ultra-Humanite was given the name Gerard Shugel … thus the goofy blog post title)
We also get to see Superman’s first use of his super-breath: