Dynamic Behavior Changes:?

Short answer: The object’s behavior changes dynamically as it transitions between states. The client code doesn't need to manage state transitions; it's handled by the state objects themselves.

Real-world example (ShopNest)

Use a GoF pattern in ShopNest only when it removes duplication or makes a change safer—explain the problem it solves in the interview.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.