There is a chat function throughout Tunngle and, of course, there are online FAQs and forums. Once you've found one you like, just double click and you're in. If you fancy gaming with Tunngle, you can search for a particular network or view all games via Community > Networks > Browser. To share files over Tunngle with friends, they'll have to sign up too, but once they have, it's as easy as starting a private chat with them (using the Messenger icon in the top right corner), right-clicking and choosing Tunngle Shares. You can access the online Tunngle features here (news, downloads, etc.), as well as actually using it as a VPN. The various parts of the program are displayed in tab-like sections across the top of the window. It makes things a little hard to read - as does the small font - but skins are also available. The Tunngle interface is the default red and black.
Once you have the program downloaded and your passwords and usernames sorted out, you can sign in and participate in various chat rooms, share files and, of course, join games. Tunngle is based on registering and joining the Tunngle community.
