[header] How to do dips [title] Find an assisted pull-up/dip machine at the gym. [step] Most gyms with extensive weight sections will have this piece of equipment. It has a platform where you place your knees or feet and weights that can be adjusted to counterbalance your body weight. 
[title] Ask for assistance from a gym employee or personal trainer the first time you use this machine. [step] If you are a first time weight lifter, assistance will reduce the likelihood of injury.