Remove it from the battery, turn the mt3 upside down grasp the
tank mid way and unscrew the base, the base and tube should come out of the tank, tilt slightly and fill with 2 ~2.5 ml of
juice. Reinstall and tighten the tube/base, turn it right side up and blow through the drip tip covering the battery end with a napkin, do that until no more
juice come out, dry the inside of the battery / base end.
Screw it back onto the battery , do not crank down on it just barely snug is good enough. Push button inhale slow and steady.
On edit, yup you gotta have the stuff that goes inside, so disregard my above ramblings.