To gain influence with a Mexican, it helps if you can speak Mexican Spanish.
When you want an engineer to act, show her how something doesn’t work well – how it is broken or is sub-optimal.
To convince an economist or businessman, show him a business case that underlines how the status-quo isn’t feasible or profitable.
Explain to a marketer how something would not sell, or how it frustrates customers.
To a behaviour scientist, explain which psychological barriers are getting in the way.
Sit a lawyer down and elucidate which morals are compromised and which ethic is undermined.
All professionals often speak their own dialect. While persuading them, it helps to use that dialect.