To sign "app", you will fingerspell the word by forming the letters A-P-P. Start with your dominant hand in an "A" handshape, with your fingers curled into a fist and your thumb resting against the side. Then, transition into a "P" handshape (index finger pointing forward, middle finger pointing down, and thumb resting on the middle finger) and bounce or slide it slightly outward to indicate the double "P".
Sign "I", "download", and "new", then finish the sentence by smoothly fingerspelling A-P-P.
Sign "your", "favorite", and fingerspell A-P-P, then sign "which" at the end while furrowing your eyebrows to indicate a question.
Sign "phone", fingerspell A-P-P, and then use the sign for "open" to show the action of launching the application.
Sign "I", "download", and "new", then finish the sentence by smoothly fingerspelling A-P-P.
Sign "your", "favorite", and fingerspell A-P-P, then sign "which" at the end while furrowing your eyebrows to indicate a question.
Sign "phone", fingerspell A-P-P, and then use the sign for "open" to show the action of launching the application.
No, you do not. Just like in spoken English, it is completely acceptable and much more common to simply fingerspell the shortened word A-P-P. Spelling the entire word is unnecessary and takes too much time.
To indicate a double letter in fingerspelling, you form the letter once and then give it a slight bounce or slide it a few inches outward (away from the center of your body). You don't need to open and close your hand.
Yes, it is very helpful to gently mouth the word 'app' while fingerspelling it. Mouthing the word provides extra context and clarity for the person you are communicating with, making your fingerspelling easier to catch.
