Anyway, here is what you will need to clicker train your cat:
1. Your cat needs to be responsive to treats.
Or some other form of reward to be able to connect a behavior to the clicker to the reward.
2. You need a clicker.
I got the clicker pictured above from The Denver Dumb Friend's League for $3. But you can grab a four pack from Amazon for under $9 here.
3. You need some delicious treats.
I use Blue Buffalo's Kitty Yums in Tasty Chicken, but whatever your cat fancies will suffice. However, avoid feeding your cat human food. Please refer to my last blog for a list of things not to feed your cat.
From my understanding if your cat performs a desirable action you click the clicker and then feed them a treat. To strengthen the connection keep repeating these steps to ultimately have your cat perform an action with just the sound of a clicker. For a more detailed description on clicker training go here or visit your local shelter for cat clicker training classes.