The Great Gatsby, he demanded eagerly

Could you please tell me the meaning of "eagerly" in this excerpt from the chapter Four of The Great Gatsby?

As the waiter brought my change I caught sight of Tom Buchanan across the crowded room.

“Come along with me for a minute,” I said; “I’ve got to say hello to someone.”

When he saw us Tom jumped up and took half a dozen steps in our direction.

“Where’ve you been?” he demanded eagerly. “Daisy’s furious because you haven’t called up.”

“This is Mr. Gatsby, Mr. Buchanan.”

Thank you.