The general table of knives and forks are right-handed use of the principle to display, then, how to do left-handed? Of course, it is one of the ways to abandon the habit of using right-handed food, but most left-handed probably don't like to change their habits. In this case, the waiter can be asked to change the knife and fork into a suitable way for left-handed use. However, when the interval is too narrow, it is best not to change the arrangement of the way, to avoid confusion in the glass, resulting in the use of trouble.
At this time just take up the knife and fork used interchangeably, so it will not feel inconvenient.