An answer you have never worked out in private will come out defensive, and defensive never sounds like hope.
Settling who the Lord is inside the heart is what steadies everything said out loud, because an unsettled heart reads a question as a threat, threat triggers defence, and defence comes out as heat or as silence. Where God already holds authority in a person, the same question registers as an opening, and the tone follows the reading.
Being ready also means a person has gone looking for the actual reason their hope exists instead of assuming one is there, and that search happens in quiet, long before any stranger is curious. Humility and fear keep the answer from turning into a contest to win. Without that work done early, a person keeps arriving at the most important question of their life with nothing to say.