Just playing around with websockets using Node.js.
Warning: Not production ready
You can use the dirty client if you like or something like or Simple WebSocket Client for Chrome and if you're hooked up to a Wifi (or any) network you can have someone host the server and use the host's IP address to connect i.e.
If you are the host.
ws://localhost:4000
If someone else is the host.
ws://<SOME_IP_ADDRESS_ON_THE_NETWORK_RUNNING_THIS_SERVER>:4000
Port 4000 only because it's the default port.