Here's how to discuss with the e-nauts.
To manage your visibility, just click on your name in the upper right of any page of e-nautia.
To communicate instantaneously with a member, click on the icon from his page or a member list. You can then start the conversation. If the e-naut is online, he will immediately receive your messages. Otherwise, he will receive at his next connexion.
You can receive a conversation from any page of the site. Once a member tries to contact you, his messages are displayed immediately if you are online. If you go to another page or click on the cross to close the conversation box, the conversation smoothly resume upon receipt of a new message. So you can navigate without worry.