Overact (verb)

To exaggerate one's actions, speech or emotions in a performance or situation.

Origin:

The word overact is a combination of the prefix "over" meaning "more than necessary" and the verb "act", meaning "to perform in a play or role".

Examples:

1. The actor overacted his role, making it seem unrealistic.
2. She overacted her distress, making it clear that she was faking it.
3. The children overacted their surprise when they saw the presents.
4. He overacted his love for her, making her feel uncomfortable.
5. The company overacted their success, leading to a fall in public trust.