using the browser as your client is an easy way to get playing in seconds, but if you'd prefer to play on your terminal directly (which is actually how I intend most people to play), try this:
1) download a client for your OS from this page:
https://github.com/moul/gotty-client/releases
2) type the following on the command line:
$ gotty-client http://play.eolsh.com:35515