others summed it up,
scout, learn their patterns,
get close, not too close to bump them,
as for calls,
mouth calls are most common and probably most effective,
also convenient to have your hands free when they are close,
i personally cant use mouth calls for the life of me,
i stick to slate,
when calling and they stop responding,
dont feel pressured to keep calling till they respond
they could be on the move headed your way,
and too many calls can increase chances making them change their mind,
its a fun game to play with the turks,