1) The moon should be seen in the western sky.
2) Moon should be searched to the right / left / above the sun.
3) You need to know the sunset and the moon time. If you do not know, contact the center to know.
4) The difference between the time of sunset and the moon should be known, ie the time limit for how long you should look for the moon in the western sky.
5) Some possible images of the moon