According to Matt Abrahams, author of "Think Faster, Talk Smarter: How to Speak Successfully When You're Put on the Spot", key strategies include avoiding conventional responses in favor of establishing genuine connections, prioritizing brevity while delivering messages, and speaking authentically without the pressure to be perfect—which means daring to be dull. Fear or nervousness need not deter anyone from communicating effectively on the spot.
Related article - Filmmakers in Congo fight the European gaze
Harvard Business Review