title: How to install an app on an android phone using Android studio?
body: <p>I'm new to android programming and followed a simple "hello world!" tutorial. It works on the emulator and also on my phone when it is plugged in my computer. However, I have no idea how to install it on my phone. I use Android Studio 0.8.6 and a Samsung Galaxy S4 using Android 4.4.2. I've tried to install the .apk file but when the installing is done, the option "open" is greyed out and the icon does not appear in my menu. Does anyone know how to actually install the app so it can be used without the phone being plugged in the computer?</p>
  
  <p>Sorry if Im doing this wrong, this is my first post.
  Thanks.</p>