To sign the word “discovered,” use your dominant hand to make a fist and place it on the top of your non-dominant hand, which is held flat. Then twist your fist in a circular motion as if uncovering something.

To sign the word “prove,” use your dominant hand to start with the index finger pointing down and move it upward in a diagonal motion, ending with the palm facing outward.

To sign the word “substances,” use the ASL sign for “matter” by making a fist with your dominant hand and tapping it onto the back of your non-dominant hand. This conveys the idea of something physical or tangible.

To sign the word temple, use two closed hands placed on either side of your head, with the fingertips touching the temples.

To sign the word “alive,” use both hands to make fists with your thumbs pointing up. Then, place your fists on top of each other and move them up and down in a small bouncing motion. This signifies vibrancy and…

To sign the word “optimization,” use your dominant hand to make a flat O shape, then rotate it in a clockwise motion while moving it up and down slightly.

To sign the word “worker,” use your dominant hand to make a flat, open palm facing downward. Then, use your other hand to mimic a hammering motion on the open palm, as if hammering away at a piece of wood.…

3 To sign the word “mp3,” make the letter “m” shape with your right hand and then tap your index and middle fingers twice on the palm of your left hand to represent the letters “p” and “3.”

To sign the word bankruptcy, use both hands to make the letter “B” by curling your index fingers and touching them together. Then, extend both pinky fingers and touch them together to complete the sign.

To sign the word “taught,” use your dominant hand to make a flat palm shape facing your body. Touch your fingertips to your temple, and then bring your hand forward in a small, circular motion.