Which behaviour at first requires explicit learning but,over time,becomes implicit?

Question

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Typing on a keyboard is a task that requires explicit learning initially, such as memorizing the placement of keys and proper finger positioning, but with practice and repetition, it becomes automatic and implicit. A skilled typist does not need to consciously think about each keystroke, making it an example of implicit learning. The other options may involve implicit learning to some extent, but they do not require explicit learning at the level of typing on a keyboard.

Which Behaviour at First Requires Explicit Learning But,over Time,becomes Implicit