You must keep to action, moment to moment, as dictated by the energy of the event itself. See the event, the scene itself, and you will see with clarity what has to be done, if anything.
Don’t do what you think. Do what is right. And what is right is reflected in what is - the event as it is in the world in front of you, not in your imagination.
If nothing is to be done, you will see that; so then do nothing. But don’t think.
If you allow your mind to move outside the now by projecting into the future or past, even by reflecting on what someone might say or think, you will turn the incident into a problem. It will then no longer be perceived for what it is, a pure happening. You will have injected fear, your emotional unhappiness, into it.
If you can keep it as a pure happening (by not conceiving it to be what it is not) it will not cause you unhappiness, now or in the future. Keep the unhappiness out of now and you keep it out of the future. Other events flowing from the incident will then fall into place rightly, in their own moment.
If you are feeling emotional pain, it means you are not seeing straight. You have short-circuited yourself, cut off from the natural flow. You are thinking, projecting your fears and uncertainties (your emotional body) onto the event. The event will then have to reflect some of the same unhappy emotions back to you in subsequent events, which will appear to contain more of the same problem.