He listened attentively, eager to learn something new.

Meaning: He was fully focused and receptive to acquiring new knowledge.

Choice of Words: Listened means to pay attention to something that someone is saying. Attentively means with close attention or care. Eager means having a strong desire or interest in something. When you put them together, it means that he was paying close attention because he wanted to learn something new.

Alternative Expressions

Related Expressions