General:
* Read: Read this book.
* Remember: Remember to buy milk.
* Rejoice: Rejoice in this moment.
* Relax: Relax and take a deep breath.
* Repeat: Repeat after me.
* Respond: Respond to the question.
* Resume: Resume your work.
* Return: Return the book to the library.
* Retire: Retire to your room.
* Review: Review the document.
* Rise: Rise and shine.
* Run: Run for your life!
More specific:
* Reread: Reread the passage.
* Reconcile: Reconcile your differences.
* Reorganize: Reorganize your desk.
* Reflect: Reflect on your choices.
* Relieve: Relieve the pressure.
* Remove: Remove your shoes.
* Repair: Repair the damage.
* Replace: Replace the old battery.
* Request: Request a refund.
* Rescue: Rescue the cat from the tree.
* Resign: Resign from your position.
* Resist: Resist the temptation.
Figurative:
* Roar: Roar with laughter!
* Rage: Rage against the machine!
* Revel: Revel in the beauty of the sunset.
* Reach: Reach for the stars!
Remember that imperative verbs give a direct command or instruction. They are often used in giving orders, making requests, or expressing strong feelings.