In Photoshop, there are a few ways to create a drip effect. One way is to use the droplet tool. To use the droplet tool, you need to select the object you want to droplet onto and then click on the droplet tool icon. Then, you can drag and drop the object onto the canvas. The droplet will start dripping down from the object. You can also use the drop shadow tool to create a drop shadow over an object. To use the drop shadow tool, you need to select an object and then click on the Droplet Shadow button. Then, you can drag and drop an object onto the canvas. The dropped object will have a Drop Shadow applied over it.