Foutch can be recognized by her blast-from-the-past outfits and "Bob" haircut.
She can also be seen using her patented "Foutchie" move. This includes waving her index finger in the air while pursing her lips and shaking her head. The sound she makes during her move is a sort-of a negative "mm-mm" sound.
Dee Dee has also often been seen and heard using this same motion.
Yeah, I've also seen how they are attached in other places too!