Social media has become a central information and persuasion channel in consumers' purchase journeys. This study examines how social media relates to buying behaviour, including attention to advertisements, trust, and perceived influence on purchase decisions. A structured questionnaire was administered to 61 social media users. Descriptive statistics were used to summarise usage patterns and perceptions. To address the common requirement of correlation and regression in social science reporting, the study also reports identification bounds for the association between time spent on social media and the percentage of purchases influenced by social media, because the available dataset contains marginal distributions rather than respondent-level pairings. Results indicate high daily engagement (1 to 5 hours for most respondents), substantial trust in information on social media, and a majority reporting that social media influences their buying decisions. Instagram and YouTube are reported as key influencing platforms, while offers and discounts are the most frequently cited motivator for shopping through social media. Implications for marketers include optimising platform selection and leveraging credible, information-rich content.