wpf listbox arrangement symbol itemtemplate mouseover

i have listbox containing settlement button. default symbol hidden. i wish symbol manifest whenever i float over an vigilant listbox.
the xaml i am controlling below. thanks

<window.resources>
        <style targettype="{x:type listbox}">
    <setter property="itemtemplate">
                    <setter.value>
                        <datatemplate>
                            <border borderbrush="black" borderthickness="1" margin="6">
                                <stackpanel orientation="horizontal">
                                    <image source="{binding path=fullpath}" height="150" width="150"/>
                                    <button x:name="sidebutton" width="20" visibility="hidden"/>
                                </stackpanel>
                            </border>
                        </datatemplate>
                    </setter.value>
                </setter>
        </style>
    </window.resources>