Which tone is most appropriate for a topic

First, you should know that a hyperbole is a resource used in literature to intentionally intensify what is been saying, in other words, overreact. In this excerpt "Man, they'll flock in droves” you can notice the resource being used cause it clearly shows an overreaction to explain that the man’s name calls the attention of lots of people, they surely trust on him. But you also see that “flock in droves” is like a metaphor, it isn’t that literally. The other one that use a hyperbole is “…I made man forever, and I'll never forget you as long as I live!”. It is being shown that forever is an extreme lapse of time, right? When you use it you obviously want to accentuate how long something will last. And for sure say as long as I live is another way to remark on the time.