People may hide their sadness in various ways, depending on their personality and coping mechanisms. Some common strategies include: 1. Social masking: Putting on a smile or pretending to be happy in social situations, even when feeling sad inside. 2. Distraction: Engaging in activities or hobbies to divert attention from their sadness. 3. Seeking solace in solitude: Withdrawing from social situations and spending time alone to deal with their emotions privately. 4. Denial and suppression: Refusing to acknowledge or confront their sadness, burying it deep within themselves.