Show text in statusbar textblock when hoover over buttons wpf

I could use some advice how to do this because im not sure how to solve the problem. I have made a statusbar in my main window in Visual studio wpf application.

In my main window i have created 10 buttons with different figues. When you click on a button, the specified button will light up and you have to click on the white space grid to draw one of those figures.

I what some text in my status to change whenever the button in clicked on / or not clicked on.

I should say:

Ready (when no buttons are clicked on)
Click on the space to draw (when a button are clicked on)

Is it possible to change the text??

my code so far

<StatusBar Grid.ColumnSpan="2" RenderTransformOrigin="0.501,1.816" Height="26" VerticalAlignment="Bottom" Background="#FF1C8DFF" >
        <StatusBarItem>
            <TextBlock><Run Foreground="White" Text="Ready,"/></TextBlock>
        </StatusBarItem>

        <StatusBarItem HorizontalAlignment="Right">
            <StackPanel Orientation="Horizontal">
                <TextBlock 
                    VerticalAlignment="Center"
                    Margin="20,0" 
                    Foreground="White"
                    Text="Zoom:"/>


                <Slider x:Name="slider" Height="20" Width="156" Margin="0" VerticalAlignment="Center" Minimum="0.5" Value="1.27" Maximum="2.0" Foreground="#FFE5E5E5">

                </Slider>

            </StackPanel>
        </StatusBarItem>
    </StatusBar>