In this tutorial I will show you 3 different ways to make shine. So open up your image.
First Example:
1. Now when you have your image open begin to create a new layer in the layers palette.
2. Then take the Elliptical Marquee Tool and do as the image shows.
3. Now set your foreground color to white, then take the Gradient Tool and choose the gradient with the X.

4. Then draw the gradient from top to bottom.
And that´s it you are done!
This is what I came up with.
Second Example:
1. Now when you have your image open begin to create a new layer in the layers palette.
2. Then take the Rectangular Marquee Tool and draw out a rectangle as the image below shows.
3. Now set your foreground color to white, then take the Gradient Tool and choose the gradient with the X.

4. Then draw the gradient from top to bottom.
Now should it look like this.
5. Now take the Elliptical Marquee Tool and do as the image below shows and press delete.
That´s it you are done!
Third Example:
1. Now when you have your image open begin to create a new layer in the layers palette.
2. Then take the Pen Tool and do as the image below shows.
3. Now go the Paths palette and click on the dotted circle ( Load path as a selection ).
4. Now set your foreground color to white, then take the Gradient Tool and choose the gradient with the X.

5. Then draw the gradient from top to bottom.
That´s it you are done!
This is what I came up with.













More Photoshop: