Mindrift is seeking native Korean speakers living in New York City for a paid, 3-day in-person research study in Midtown Manhattan examining smartphone and app usage. Participants will walk researchers through their daily digital habits, share select phone activity examples, and complete questionnaires. Candidates must have grown up in South Korea, actively use Korean in daily life, have 3+ years of smartphone experience, communicate comfortably in English, and not be employed by a tech or AI company.