It is best to hand the chicken to the children, as picking them up can startle them and is a better job for adults who can know where to grab and when to let go. Only do this with tame chickens at first to get used to it. Stand beside the chicken and place one palm on each side of the chicken's body. Lift. Press her back against your chest with one hand, then use the other to slot a finger on either side of her legs. Hold onto her legs with that one hand as you sort of tuck her under the arm of at hand. The arm will hold her, while the hand holding her legs will keep the legs from raking you. Show the child how you are holding the chicken, then slowly transfer. Smaller kids can hold the chicken against their chest and just hold their legs, but it leaves the chicken's beak awfully close to the child's face. Most people carry chickens upside down by their legs as chickens sort of go to sleep when flipped upside down quickly, but I don't like having kids carry them that way as chicken's legs are delicate and kids might hurt them.