The social options feature adds a share button to content in the Activate mobile app.
Social options
Social Options can be used with any piece of content to allow members to share a link to an event on social media or messaging apps installed on their mobile device.
If the channel's public, the link takes any user directly to the content item in the mobile app. If the channel's private, the user will be asked to login—if they're a member of the channel and part of the target audience, the link will open.