Introverts are surprisingly good at presentations. Our tendency to worry about every little thing that could possibly go wrong is actually a S+ skill when properly channeled.
Our biggest flaw is lack of clarity in speech; mumbling, stuttering, voice too low etc, much like Tomoko gets called out on in this chapter. But that can easily be overcome with rehearsal. Early on in college I was terrified of presentations, I'd actually drop classes if I knew there would be any. Now I actually quite enjoy them.
Sometimes I go too far though. Once, I spoke for 40+ minutes nonstop about organic waste disposal, and while I was explaining several graphs and schematics, the teacher nearly fall asleep. I could see her kinda nodding off lol.
Actually, everyone was nodding off... it was a rather boring topic.