Want to join?) Click the Connect button at the bottom of the widget to get an invitation 
You can start from the hp-free-talk-international or hp-say-hello-international channel
The syntax for translating a message into your language is: ?en Message text
2. Our emoticons (opens in a new tab)
3. To add a picture in a comment, use the services of photo hosting (suitable HTML-code to insert).
To place file, you can use a file hosting, for example, Yandex. Drive.