Someone who is inquisitive:
* Asks lots of questions to learn more about something.
* Shows a genuine interest in understanding things.
* Likes to explore and discover new things.
Here are some synonyms for inquisitive:
* Curious
* Questioning
* Inquiring
* Investigative
* Nosy (can be a negative connotation)
Examples:
* "The children were inquisitive about the new puppy."
* "She has a inquisitive mind and is always asking questions."
* "He's a inquisitive journalist who always digs for the truth."