In particular language. Keep the language barrier low, about 12 – 14 years, that’s a level that you can reasonably expect most people to understand.
Remember that language is self selecting, if you want to talk to graduates raise the bar…
Funnily enough this was the difference between Google & Microsoft in the battle for search engine market share. When a misspelled search occurred Microsoft would say ‘try rephrasing or using synonyms’ whereas Google said ‘try different words’.
Subtle changes but profound effect.