3. Menu Definition <menu xmlns:android="http://schemas.android.com/apk/res/android" > <item android:id="@+id/menu_social_person" android:icon="@drawable/ic_action_social_person_holo_dark" android:orderInCategory="100" android:showAsAction="ifRoom" android:title="Person"/> <item android:id="@+id/menu_refresh" android:icon="@drawable/ic_action_refresh_holo_dark" android:orderInCategory="110" android: