Shucking oysters is a skill that takes precision, technique, and usually some experience. There are slight variations in how people perform the task, but they all have the same concept.
Protective Glove or a towel
3 Easy Steps to Shucking an Oyster
Locate the hinge of the oyster, (not to be confused with the front of the oyster) where you will open the shell.
Insert the pointed part of the shucking knife into the hinge, and gently pry or rock it to help loosen the shell. Separate the top muscle from the bottom muscle with the tool, being careful not to get shell pieces in the oyster.
Ensure the oyster is loosened from the bottom muscle using your shucking knife by lightly scraping the upper shell.