1. in a happy and optimistic manner
2. willingly and without complaint

Examples

• She cheerfully greeted everyone at the party.
• The children played cheerfully in the garden.
• He cheerfully agreed to help with the project.
• The volunteers cheerfully donated their time.
• She cheerfully accepted the extra work assignment.
• The dog wagged its tail cheerfully when its owner returned.
• They cheerfully sang songs around the campfire.