Another study by Gergely and his colleagues (2002) followed up on a finding of Meltzoff (1988) showing that 14-month-olds imitate the means an agent employs to attain a goal, even if those means are not the most direct or efficient. Meltzoff showed infants that tapping a panel light with his head made it light up. When babies returned to the lab the following week, they too used their heads to turn on the light, rather than simply pressing it with their hands. Gergely suggested that this seeming