Behavior analysts have spent relatively little time in designing interventions to enhance motor development in typically developing infants and children. This study examines the effect of a motor training package consisting of opportunity to respond and practice (standing the infant and letting her hold the fingers of the experimenter), conditioned leg kicks (using Fischer Price's Kick and Play) and buttocks and trunk lifts (stimulated by contingent imitation of the infants responses) on minimally assisted standing behavior in a three month old infant. Using an ABAB reversal design, we were able to dramatically increase the amount of time the infant stood and decrease the infant's rate of wobbling while standing. Future directions for this research are discussed.