Most people do this: Pull the tail off, suck the head (optional), peel off the first scale or two, pinch, pull out meat with fingers and eat.
To me, this is inefficient. I'm surprised more people don't do this, but here is my method: Place your thumb on bottom of tail and index finger on top. Push the tail into the body/head so that your first two scales are in the cavity. Twist the tail away from you. The first two scales will catch on something inside the cavity and break off of the tail. Pull the tail out of the cavity, leaving the first two scales jammed into the opening of the cavity. Suck the head (yes you can still do this with this method) and then pinch and pull the tail meat out with your mouth (or your finger if you prefer). If the crawfish are cooked right, this method works 90% of the time. Sometimes it doesn't work and the tail breaks, but it is worth it considering the error rate. Also, you don't tear up your fingers trying to peel off the scales, because that's already done for you with minimal effort.
Sorry if Germans, but I searched and haven't seen this posted anywhere. I'll have to post a video sometime if anyone is confused.
This post was edited on 5/10 at 11:34 am