
Select "Horizontal Type tool" (the default one), click inside the rectangle and set the following settings:
"Font" to "Verdana"
"Size" to "30pt"
"Color" (Select it from the sand color by using the color picker)
Type "I WAS HERE" or something else that comes to mind :)

Choose Edit> Transform> Rotate from the menu and rotate the text a little bit like in the below image:

Select the "Background" layer, hit Shift+Ctrl+N to create a new layer, select the "I WAS HERE" text and hit Ctrl+E to merge down the layers
Now go to Edit> Transform> Skew to transform the text a little bit, like here:

Alrighty, almost done. Let's go to Layer> Add Vector Mask> Reveal all (a new vector mask will now be created) and double click on the "Vector mask" thumbnail. A layer style dialogue box will open:
Choose "Bevel and Emboss" style from the left
"Depth" to "25%"
"Size" to "5px"
"Soften" to "0px"
Once you're done with the settings press okay and enjoy your very own signature in the sand. Imagine, all this without even owning a buldozer :D

Additional ideas:
- play with the opacity of the layer
- play with the new warp tool in CS2
- play with the layer mask to make people inside the signature







