Everybody needs to play with their cats!
If you are unsure how to play with a cat, you can learn how by getting a few simple tips. For example, kittens play with pretty much anything, so they are easy. But you just need to be sure to keep them away from potentially dangerous items.
Are you unsure of the reasons why you should play with your cat? Here is a good list of reasons to play with your cat. Bonding, exercise and releasing anxiety are all good reasons, but they delve into more.
Also, here are a bunch of questions and answers about kitten playtime, you might pick up some good tips reading through this stuff.