Double click a layer’s thumbnail in the Layer palette to open the Layer Style dialog. Here you can add a style such as a pattern overlay or drop shadow to your layer.
I'm Helen Bradley - I'm a photographer and Photoshop professional. In this Photoshop and Lightroom blog you will find powerful Photoshop and Lightroom tips, tricks and techniques that will help you get more out of both programs. You will also find step by step guides for working creatively with your photos in Lightroom and Photoshop and any other cool applications I know you will be interested in knowing more about.