Why is Bud sure he'll remember Deza Malone?

Bud is confident he'll remember Deza Malone because she made a significant impression on him during their brief encounter. Her vivid personality, unique way of speaking, and the connection they shared stand out in his mind. Additionally, Deza's kindness and encouragement resonate with Bud, making her a memorable figure in his life. These factors combine to ensure that she will stick in his memory long after their meeting.