To open Messaging on Web, click on the Messaging icon that is always on the right hand side of your screen.
The list of people displaying under Direct Messages displays all people you have messaged with historically across all events you've attended.
You may begin a new direct message with an attendee through two areas.
When you open an attendee's profile, you will see the ability to connect with them. Once the official connection has been made, you will be able to Direct Message them by selecting the Messaging icon in Contact Options.
When you open Messaging window on the right hand side, you may select the "+" button to the right of the Direct Messages header. This will open up the ability to search for the attendee you would like to direct message.
Once you've begun a Direct Message, you will be able to view the Direct Messaging chat history between you and the attendee.
You may currently send a written message, attach a photo and/or a video. You may select up to 10 photos to include in any message.
Click on the heart icon to like the message.