If you had the knack, Puck might do minor housework for you, quick fine needlework or butter-churning, which could be undone in a moment by his knavish tricks if you fell out of favour with him. He may also do work for you if you leave him small gifts, such as a glass of milk or other such treats, otherwise he may do the opposite by "make[ing] the drink[beer] to bear no barm" and other such fiendish acts. Pucks are also known to be inherently lonely creatures, and often share the goal of acquiring friends. "Those that Hob-goblin call you, and sweet Puck, / You do their work, and they shall have good luck" said one of William Shakespeare's fairies. Shakespeare's characterization of "shrewd and knavish" Puck in A Midsummer Night's Dream may have revived flagging interest in Puck.[4]
According to Brewer's Dictionary of Phrase and Fable (1898):
[Robin Goodfellow is a] "drudging fiend", and merry domestic fairy, famous for mischievous pranks and practical jokes. At night-time he will sometimes do little services for the family over which he presides. The Scots call this domestic spirit a brownie; the Germans, kobold or Knecht Ruprecht. Scandinavians called it Nissë God-dreng. Puck, the jester of Fairy-court, is the same.