you tube has lots and lots of kettle bell work outs, pick one that suits your goals, as with any exercise you need to pick if your doing low weight , high reps, low reps high weight, some where in between or all three.
in essence, there great for swinging about, so lweighted full body movement, so just swing one around in every plane of movement you can think of, but you can use them for any weight training where you can use dumb bells, or nearly any body weight exercise that you want to add more resistance to, hold one whilst do squats or lunges, tie one to you belt when doing dips or pull ups, or put one in a rucksack when doing press up or hill sprints. your only limited by you imagination.