When posting a task, you will have the option of posting it as either a Public Task or a Private Task.
Public tasks are able to be viewed by any Tasker within a 50-mile radius from the posted tasks site. You can then select the Tasker you want to schedule from the list of applicants.
Private tasks are able to be sent to specific Taskers or to a group of preferred Taskers. Once you send this task out, the first Tasker to apply will be automatically scheduled. If the Tasker declines the offer, you will receive a notification, and you can choose a different Tasker.
How do you Choose Taskers?
Making a Task private is done at the last step of Task creation. When you get to the "Post This Task" page, you select "Choose Taskers." This will allow you to choose from a list of suitable Taskers in your area that have the chosen Task category listed on their profiles. You can sort the candidates as you see fit and even mark candidates as "Preferred Taskers."