“Social prosody” refers to prosodic variations in speech that convey a specific social intention. We employed social prosody variations to study the impact of how the voice of “showing an interest” can have on others. Specifically, this research explores the nuanced influence of prosody on how listeners self-disclose and their communicative intentions (e.g., willingness to disclose). Across three studies (Study 1a native English Speakers; Study 1b native Asian speakers; Study 1c English & Asian speakers), we found that listeners reported feeling closer to speakers and demonstrated increased satisfaction and willingness to engage with speakers when they spoke in an “interested-sounding” voice compared to an "uninterested" one. This paper describes the third study, a cross-cultural comparison between British and Indian speakers. Disclosure analysis shows listeners used higher word frequency (Word Count); higher logical thinking (Analytical Thinking); communicated with more perceived honesty (Authentic Communication); higher linguistic style and language comprehension (Linguistic Style), more words signalling cognitive engagement and use of formal language (Function Words), and pronouns reflecting social hierarchy and attentional focus dimension (Pronouns used) to speakers with interesting-sounding voices. These findings suggest that the way we show an interest in someone is key in influencing listeners’ emotional responses and communicative intentions.