Once you have Ellipse tool selected choose a neutral grey colour from your colour palette, like 50% grey, and simply draw your droplet. You can make the shape of your drop more elliptical using the Direct Selection Tool and the Pen tool or just leave it round to keep things simple.

We need next to start applying some layer styles. For this we will change the blend mode to Overlay.

Bring up your Layers Styles dialogue box by double clicking on the blank area of your layer.

We will start from the top and add some layer styles:
1. Drop Shadow, set the opacity to 15% and the angle to 90 degrees and choose the second from top left contour option.
2. Inner Shadow, and again opacity 15% angle 90 degrees.
3. Inner Glow, blend mode multiply and colour to black the opacity to 20%.
4. Bevel and emboss, style inner bevel, depth 100%, angle 90 degrees and altitude to 70. The highlight mode normal with white colour increase the opacity to 100% and shadow mode to overlay with white colour and 90% and click OK.

The result of these adjustments should look like this:

The last thing we need to take care of is to distort the background image behind the droplet. To do this go select your background layer and hold down ctrl and then Filter->Distort->Ripple and adjust the settings to your liking and hit OK. Once you have your first water drop you can easily adjust the size and feel of your drops.

SFX Filters

Special Effects Filters are a subset of Destructive Photoshop Filters which can produce dramatic effects to your images. They are used to create an X-factor in your images to impress the viewers. There is much room for artistic creativity with these filters. Lighting Effects, Plastic Wrap, and Diffuse Glow etc are some examples of Effects Filters.

Rendering: These filters create special effects in the image by creating looks, object or other lighting effects in the original image.

Using the Clouds filter: This filter creates clouds from by using few clicks of the pointing device; this filter uses random values from background and foreground colors. Many of those skilled users of Photoshop use this filter and add number of clouds in their images. It is accessed in Filter > Render > Clouds.

3D Transform: This filter distorts a 2-D image as if it were created in a 3-D program. With this filter a portion of an image can be rotated, so that I could looked from different angles, this works best in the situation when you want very minimal changes in an image. Large changes in the image take longer to make the changes in image desirables. However, it is better to use this filter for graphics and is not suitable for photographs.

Difference Clouds: This filter lets you make the objects in the sky foggy. Instead of using cloud filter itself, this filter uses image information for differences in pixel values between the new clouds and the image this results in unique effect of the clouds. Applying this filter repeatedly creates the marbleized effect.

Lens Flare: This filters produces the effects in the image when this image is taken when they camera moved towards the sun or any other strong source of light. Photoshop has several different photographic lenses, giving you different effects or to make the concert photos spicier, for example you can add a sunset when there is no sunset, or create the light bursts in the image. It is accessed in the Lens Flare dialog box, where you have to specify a location for the center of the flare by clicking on the image thumbnail.

Lighting Effects: This filter is the sort of photo studio lighting setup; this filter uses pixels to do its work. This filter lets you choose 16 different options to add special illuminating effects in the image.

Texture Fill: This filter lets you fill the area with grayscale image, you can access this filter at filter>open image and use the texture to fill.