You can exchange private messages with other users on a one-to-one basis. The messages are only visible to the sender and recipient.
This is beneficial when you want to contact a specific user privately. For example, you can use private messages to ask your supervisor or senior colleague for advice, or to have a casual talk with your co-worker.

For the steps to search for a user by username and then send them a message, see below.

1. Search for a user in the search box at the top right of the screen, then click the Send private message icon to the right of their username.
   

2. On the "Messages" screen, click the message input field, enter your message, and click Send.
   

For the steps to send someone a message from their People page, see below.

1. Search for the username of the user who you want to send a message to and click their name, or click the Quick Access Menu icon at the top of the screen, select People, and click the user's name.
   

2. Click the Send private message icon on the right side of the user's People page.