You're asking a near impossible question. Aubergines (aka eggplants) can be fixed in literally thousands & thousands of ways. Have you done any searches on "cooking aubergines" or "cooking eggplant"? If you do you'll see what I mean.
They can be baked, fried, stirfried, steamed, stuffed; done Asian style, Italian style, Moroccan style, Greek style, Indian style - frankly, they're a truly international vegetable.
Which is why it's virtually impossible to answer your question without knowing more specifically what you're interested in doing with them. If you've never eaten them before, trying them at a restaurant might be your first step.