Mark As Unread In Gmail Android Apps
![Image](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiNjC78jpbTTPr3e7YTAobUA4seT-umnLCw3GzHAbPsv_MsGkAPfjzMv-bs5HoV8VM1cPlXi013UuLi4xYvlggvpXuMtBtbdp_EKCNF8u53JEAHKvpqSeB581hGVc6muR1tN5KIEd4YF7Th/s400/gmail+mark+as+unread.png)
Gmail Android app has mark as unread option as a button which I never found out until recently. The fourth button on action bar with closed envelope is mark as unread button. :S Check the screenshot below if you're also confused.