[niknetniko]

Android used to recommend to open the hamburger menu when people open the app automatically, until they have opened it once themselves.

> Upon first launch of your app, introduce the user to the navigation drawer by automatically opening it. This ensures that users know about the navigation drawer and prompts them to learn about the structure of your app by exploring its content. Continue showing the drawer upon subsequent launches until the user actively expands the navigation drawer manually. Once you know that the user understands how to open the drawer, launch the app with the navigation drawer closed.

From http://www.androiddocs.com/design/patterns/navigation-drawer... (older versions of the docs, I can't find it on the current site)