送礼是一种非常重要的社会互动，也是增进人际关系的重要方式。而且，在很多情况下，这样的行为会被他人所观察到，可能会被感知为一种“礼物炫耀”，从而引发观众复杂的情感体验，其中可能受到文化差异、社会心理等多方面因素的影响。本研究从自我-他人的视角，研究礼物炫耀行为对主观幸福感的指征作用。具体来说，本研究从不同视角来研究人们分别作为当事人和旁观者，对于不同程度的炫耀场景下收礼者主观幸福感的感知和判断，并讨论了内外部动机在其中起到的中介作用。本研究共三个实验：实验一使用实验法，通过操纵炫耀的不同水平，验证自我-他人视角下炫耀行为和主观幸福感之间关系的差异；实验二采用实验法，探究在高炫耀水平的场景中，自我-他人视角影响主观幸福感推断差异的心理机制，即内外部动机的中介作用以及礼物类型(物质型 vs. 体验型)的调节作用；实验三验证完整的实验假设模型，即礼物类型和炫耀程度对于自我-他人收礼者主观幸福感判断的交互影响，以及动机推断其中起到的中介作用。本研究的结论有助于更加深入地理解收礼者炫耀的心理成因，以及礼物在人际关系中的作用机制，为人们更好地理解和处理社会交往中的复杂问题提供一定的启示。本研究将结合学术理论和实践经验，深入挖掘其背后的心理机制，揭示其对人际交往和情感表达的影响，为促进人际关系的和谐发展提供理论支持和实践指导。

The act of gift-giving is a significant social interaction and a crucial means of fostering interpersonal relationships. Moreover, in many instances, such behavior may be observed by others and perceived as a form of "gift flaunting," thereby eliciting complex emotional experiences among observers, which may be influenced by various factors such as cultural differences and social psychology. This study investigates the indicative effect of gift flaunting behavior on subjective well-being from the perspective of self and others. Specifically, the study examines the perceptions and judgments of recipients' subjective well-being under different degrees of flaunting scenarios from both the perspective of participants and bystanders, and discusses the mediating role of internal and external motivations therein. The study comprises three experiments: Experiment 1, utilizing experimental manipulation of varying levels of flaunting, to ascertain the variations in the association between ostentatious behavior and subjective well-being as perceived from personal and external viewpoints.; Experiment 2, employing experimental manipulation to explore the psychological mechanisms underlying differences in subjective well-being inference influenced by the self-other perspective in high flaunting scenarios, namely the mediating role of internal and external motivations and the moderating effect of gift type (material vs. experiential); Experiment 3, validating the complete experimental hypothesis model, including the interactive effects of gift type and flaunting degree on the subjective well-being judgment of recipients from the self-other perspective, as well as the mediating role of motivation inference therein. The conclusions of this study contribute to a deeper understanding of the psychological causes of gift recipients' flaunting behavior and the mechanisms of gifts in interpersonal relationships, providing insights for better understanding and handling complex issues in social interactions. This study will integrate academic theories and practical experiences to delve into the underlying psychological mechanisms, reveal its effects on interpersonal communication and emotional expression, and provide theoretical support and practical guidance for promoting the harmonious development of interpersonal relationships.