Make sure your phone has enabled USB Debugging. As to where it is, look in settings where there is a Developer Option section. You should be able to find it there.
Now, in Eclipse do the following:
1<span style="color: #0000ff;">Right click project name, then choose Run As > Run Configurations</span>
1<span style="color: #0000ff;">Choose the Android project and go to Target tab</span>
1<span style="color: #0000ff;">Select Manual option then click OK button</span>
Once you run the app, you will be prompted to choose where you want to run your apps and your phone should be part of the list available as well as the other emulator AVDS.