World Series game three between the St Louis Cardinals and the Philadelphia Athletics

The video covers a baseball game scenario where the initial pitch is followed by Walker hitting a drive to right field, securing two bases. Subsequently, Blades hits a ground ball down the third base line, showcasing a sequence of plays in a baseball game.

What does it mean when it is said 'it's two bases for him'?

What action does Mr. Blades take when the ball is hit?