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If, when — often left hanging

Sets up a condition, and in these lines it very often ends the caption and lets the video supply the payoff: drizzle sesame oil over a fresh hot pot of rice..., take a few photos in fun poses..., and when he lifts it.... That trailing shape is a staple of on-screen text, building a small moment of suspense. Inside a sentence it is the ordinary 'if' or 'when' — if they're a bit shy, if they play around a little before Iksan.

Register: neutral; the trailing use is caption style