...
Sometimes you will come across a word that doesn’t exist – maybe for technology like a computer or cell phone. Ask yourself: “Is this a useful thing to say?” If the answer is yes, ask your speakers if they would have a way of expressing the concept in a sentence or ask if they would like to make up a word. All thriving languages add new words all the time so do the same with your language! If your speaker is not comfortable making up new words, keep a list of them. Then later, you could set up a meeting with several speakers to decide on new words.
...