please be careful; please take care
Polite fixed expression used in warnings, signs, and announcements to ask someone to be cautious or pay attention.
Please watch your step.
Please mind the gap between the train and the platform.
Standard polite request form; the most common spelling in modern Japanese.
Variant using the kanji 下 for ください; less common but still seen.
Polite request formed from the noun 注意 (caution, attention) with the honorific prefix ご and the imperative form of くださる (to give), literally 'please give me your attention/caution'.