make one's presence felt

have a strong and obvious effect or influence on others or on a situation

引起別人注意自己的存在，使自己對人（或形勢）有強烈且明顯的影響

presence of mind

the ability to remain calm and take quick, sensible action

鎮定自若，遇事不慌

he had the presence of mind to record the scene on video.

他鎮定自若地用攝像機錄下現場。