They three key roles of a wicket keeper in my mind are:

• Self-motivation – to be physical fit so you can make the effort to be in the right positions to take dismissals and be tidy behind the stumps.
• Drive – talking to and supporting your team mates to help maximise their efforts in bowling and fielding.
• Defend - to be the protector in the field. When the going gets tough or there’s a level of conflict the keeper needs to stand up for the team and not take a backward step