To share a stack/ePoster, first open the More Menu (1) and choose Share (2).
This will show you the stack/ePoster’s key information including its QR code (3) and unique web address (4). If you show the QR code to someone they can scan it and open the stack/ePoster on their phone. If you copy the web address then you can send it to someone who can click on it and open the stack/ePoster. You can also choose to share the ePoster to Twitter (5).