Standing up, standing back

A wicket-keeper will usually stand up to the wicket - in other words close behind it - to a slow bowler, to increase his chances of effecting a stumping.

The wicket-keeper will usually stand back from the wicket when a faster bowler is operating, to increase the chances of catching a snick off the edge of the striker's bat. Just how far he decides to stand back will depend on the speed of the deliveries and the playing characteristics of the pitch.