What's happening here?
Action: something has to trigger your character to reveal his Plan B. In this snippet, it’s just a stare from the tiger. What could be a triggering action in your version?
Reaction and considering a different plan: this physical reaction builds suspense by slowing down time, until we hear Plan B. You can play with this moment—who’s reacting to who, and how? What’s important is you hang back for a moment, and then reveal a different plan, which should come as a shock.