It’s Not Bragging If You Can Back It Up: Can LLMs Understand Braggings?

Jingjie Zeng, Huayang Li, Liang Yang, Yuanyuan Sun, Hongfei Lin


Abstract
Bragging, as a pervasive social-linguistic phenomenon, reflects complex human interaction patterns. However, the understanding and generation of appropriate bragging behavior in large language models (LLMs) remains underexplored. In this paper, we propose a comprehensive study that combines analytical and controllable approaches to examine bragging in LLMs. We design three tasks, bragging recognition, bragging explanation, and bragging generation, along with novel evaluation metrics to assess the models’ ability to identify bragging intent, social appropriateness, and account for context sensitivity. Our analysis reveals the challenges of bragging in the social context, such as recognizing bragging and responding appropriately with bragging in conversation. This work provides new insights into how LLMs process bragging and highlights the need for more research on generating contextually appropriate behavior in LLMs.
Anthology ID:
2025.acl-long.858
Volume:
Proceedings of the 63rd Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers)
Month:
July
Year:
2025
Address:
Vienna, Austria
Editors:
Wanxiang Che, Joyce Nabende, Ekaterina Shutova, Mohammad Taher Pilehvar
Venue:
ACL
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
17542–17560
Language:
URL:
https://preview.aclanthology.org/ingestion-acl-25/2025.acl-long.858/
DOI:
Bibkey:
Cite (ACL):
Jingjie Zeng, Huayang Li, Liang Yang, Yuanyuan Sun, and Hongfei Lin. 2025. It’s Not Bragging If You Can Back It Up: Can LLMs Understand Braggings?. In Proceedings of the 63rd Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers), pages 17542–17560, Vienna, Austria. Association for Computational Linguistics.
Cite (Informal):
It’s Not Bragging If You Can Back It Up: Can LLMs Understand Braggings? (Zeng et al., ACL 2025)
Copy Citation:
PDF:
https://preview.aclanthology.org/ingestion-acl-25/2025.acl-long.858.pdf