You must learn to respond effectively to any external stimuli/situation by asking yourself:
What should be my response?
What is the best option to take?
How can you deal with it in the most effective manner and in the least amount of time?
Can you do something about it right now?
If you cannot take action on it right now, can you delegate it to someone else?
Can you afford to keep it pending or delegate it?
How will you be reminded at the right point of time to check whether appropriate action is being undertaken by those whom you had delegated the work?
Does your response match with the urgency and importance the stimuli/situation warrants?”