You notice a nervous first-time flyer getting increasingly anxious. What would you do?

If I noticed a nervous first-time flyer becoming more anxious, I would approach quietly and speak in a calm, simple way. I would start by asking what is worrying them most, because some passengers are afraid of turbulence, some are overwhelmed by the cabin environment, and some just need clear information.

I would then give practical reassurance instead of empty promises. For example, I might explain what stage of the flight we are in, what they can expect next, and what normal sensations like taxi, takeoff, or light turbulence usually feel like. If appropriate, I would offer water, encourage slow breathing, and let them know they can get my attention if they need help.