When you want to add clouds to your photo, there are a few things you need to know. First, Photoshop offers a variety of ways to add clouds. You can use the Clouds tool, the Healing Brush, or the Layer Masking tool. The Clouds tool is the most popular way to add clouds. To use it, select the Cloud icon in the Tools palette and then click on it. The Cloud dialog box will appear. In this dialog box, you can choose how many clouds you want to create and how big they should be. You can also choose whether you want them in the sky or on a specific object. The Healing Brush is another way to add clouds. To use it, select the Healing Brush icon in the Tools palette and then click on it. The Healing Brush dialog box will appear. In this dialog box, you can choose how much damage (or light) your cloud will cause when it is hit by an object or filter. You can also choose whether you want your cloud to be transparent or have some coloration. The Layer Masking tool is another way to add clouds. To use it, select the Layer Masking icon in the Tools palette and then click on it. The Layer Masking dialog box will appear. In this dialog box, you can choose which objects (or layers) will be affected by your cloud when it is added; for example, if you want all of your layers to be affected by your cloud when added, then select that option in the Layer Masking field).