A person doing a trick on a snowboard.
A pro snowboarder is competing in the Olympics.
Not all people are pro snowboarders.  Doing a trick on a snowboard does not imply competing in the Olympics.
A person doing a trick is not necessarily a pro.
Although they are doing a trick, it does not imply that they are a pro snowboarder.  It also doesn't imply that they are competing in the Olympics.