A friend you can have on Discord, because you have no friends.
If you just want to add discord-friend to your server: Click This
But if you want to host the bot yourself, Download and install NodeJS
Once downloaded, enter the following command to install node modules:
npm install
After the node modules install rename config-example.js to config.js and replace <CLEVERBOT_API_KEY> and <DISCORD_API_TOKEN> with tokens that can be obtained here: Cleverbot Discord
Once you setup the api keys, run:
npm start
The bot is now running, and can be added to your server or whoms't ever's server.