How to deploy android application to a device?

I developed an application. Now I want to deploy it on real device. Can any body please tell me the steps and the requirements to deploy it on a real device.

Thanks Deepak

How do I deploy an app on my phone?

You can do this by going to the device's settings menu, selecting “Applications” OR “Security” (on the most recent Android versions) and checking the box of “Unknown Sources” to allow installation of apps from sources other than the Google Play store.

There are multiple ways:

If you don't use eclipse, you can use adb tool. adb -d install PATH_TO_YOUR_APK_FILE
If you use eclipse, you can click run application in eclipse's launch menu. If this doesn't work, make sure you have "USB Debugging Mode" checked on your android phone. It's in the application menu.
You can export your package and sign it! And then browse to it to install.