-Stand between the dip bars and use your legs to jump up to the top position with arms fully extended and shoulders depressed and protracted

-As you get stronger use less jump and try to push up the remaining range of motion

-Engage your core and glutes to prevent swinging

-Lower yourself, taking about 3-5 seconds until your upper arm is parallel with the bar, if you have good shoulder mobility you can go lower as long as you can maintain the shoulder position

-Do not flare your elbows

-Keep your legs straight and perpendicular to the floor throughout the whole range of motion

-Step down to reset and repeat

-To make this easier you can use a platform to step up to the top of the dip, gradually reducing the height of the platform as you get stronger