Roller Coaster Face Swap

This is what I did in class the other day for practice in using Photoshop. First I imported the original picture into Photoshop, used the lasso tool to draw around the funny face, and copied and pasted it onto the image for as many faces as there are in the picture. Then I dragged the faces over to the other faces, used transform (control+T) to resize them, deleted the face underneath, and then blended the new face with the rest of the old face. And BAM, here it is.