To sign the word “obligation,” use the American Sign Language (ASL) sign for “must” or “have to.” This sign involves making a fist with your dominant hand and tapping it on the center of your chest.

To sign the word “modes,” use the ASL sign for “mode” and add an “s” handshape at the end to indicate plural.

To sign the word excel, first make the sign for the letter “E” by extending your index and middle fingers while keeping your thumb, ring, and pinky fingers tucked in. Then, curve your index and middle fingers downwards to make…

To sign “vt,” use your dominant hand to make a “V” shape with your index and middle fingers, and then touch them to your chin.

To sign the word “Edinburgh,” you would form the letter “E” with your dominant hand and swipe it across your forehead, then form the letter “D” with your dominant hand and tap it on your non-dominant hand’s palm.

To sign the word “intelligent,” use your dominant hand to make an “i” handshape and touch your forehead twice.

To sign the word charity, use your dominant hand to form a C shape and touch your shoulder, then move your hand down and away from your body in a sweeping motion.

To sign the word cf, make a fist with your dominant hand and place it on your chest, then use your other hand to make a “C” shape and place it on top of your fist. This represents the letters…

To sign the word “config,” use the American Sign Language (ASL) fingerspelling technique by making the letter C with your dominant hand and tracing the shape of the letter on your non-dominant hand. Then, fingerspell the letters O-N-F-I-G.

To sign the word coastal, first make a “C” shape with your dominant hand by touching your thumb to your pointer finger. Then, place your hand on the side of your face and move it from your cheek towards your…