"Watch." I often tell my sons or my other baseball players "BE READY". They know what I mean. It means plant both feet, bend your knees, and get your hand and glove ready to catch the ball that could very well come your way if the batter hits this next pitch. Perhaps an unusual analogy, but perfect for what I'm trying to say.
"Watch" from Jesus carries the same meaning for Christians as "Be Ready" carries for my ball players. We have to live our lives in the meantime