SetPlayerSpecialAction(playerid, SPECIAL_ACTION_CARRY);

loop: indicates whether or not the animation will loop.
updatePosition: will change the actual coordinates of the ped according to the animation. Use this for e.g. walking animations.
interruptable: if set to \'false\' other tasks wont be able to interupt the animation. Setting this to \'false\' also gives this function more power to override other animations that are running. For example, squatting after a jump can be terminated.
freezeLastFrame: ... (From 1.1 onwards). 

setPedAnimation(source, \"CARRY\", \"crry_prtial\", 0, true, false, true, true)