Related Clues:

• Commit a faux pas, e.g.
• Act human?
• Be human, in a way
• Drop an easy one, e.g.
• Misadd, e.g.
• Choose badly, e.g.
• Commit a misstep
• Commit a faux pas, perhaps
• Botch a catch
• Be fallible
• Lonelyhearts' title
• Make goofs
• It's as good as a mile
• Drop a pop
• Lose points on an exam, say