Please take in consideration that I'm refering to the Toolbar Widget(Android L/API 21+) By overflow menu and icons I mean something like this one :

Something more difficult : Is there any way that the icons appear on the RIGHT side of the text?
create a menu in menu, for example: main_activity_actions.xml and use this code for the toolbar, try it:
    <?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:All4One="http://schemas.android.com/apk/res-auto">
    <item android:id="@+id/algo"//some id
        android:icon="@drawable/kami_nomi_zu_shiru_sekai3" //add the image
        android:title="nose"
        All4One:showAsAction="always">
        <menu>
            <item android:id="@+id/WIFI"//option to display on the menu
                android:icon="@drawable/nisekoi1"//this is a option of the submenu
                android:title="@string/WIFI"/>
            <item android:id="@+id/DATOS"
                android:icon="@drawable/nisekoi6" //this one also is a option
                android:title="@string/DATOS"/>
            <item android:id="@+id/BT"
                android:icon="@drawable/sao1"
                android:title="@string/BT"/>
            <item android:id="@+id/NADA"
                android:icon="@drawable/nisekoi6" //the same
                android:title="@string/NADA"/>
        </menu>
    </item>
</menu>
