Charisma is being able to sell a fruit salad with tomatoes in it.

Just for the sake of information, the two common ways to put this in English are “How it feels” and “What it feels like”. The former phrase is just descriptive, so it doesn’t need the “like” at the end. The latter phrase is comparative to another thing, so it needs the like. Also this is something that native speakers mix up all the time, so don’t worry too much; your English is great!