"**Cool**" is perfect—very natural in casual chats.

**Tip**: You can also say:
- "**Nice**" (slightly more positive)
- "**Awesome**" (more excited)

**Example**:
A: *"I finished my homework early!"*
B: *"Awesome!"*

Keep it simple like you did—great job 😊

Localhost 2025-07-05T14:01:46Z