Answer: watching

AnswerCrossword Clue
WATCHINGGirl ..., male activity on a beach
watchingFollow closely or maintain an interest in
watchingKeep under careful or protective observation
watchingLook out or be on the alert for
watchingBe careful
watchingWATCH, to keep in view
watchingLook at or observe attentively, typically over a period of time
watchingSecretly follow or spy on
watchingBe careful (used as a warning or threat)
watchingExercise care, caution, or restraint about
watchingRemain awake for the purpose of religious observance