If Im scanning she walks by my side, if I light something up and it is seen by her, I let her make her own call, as that will be GO. If she hasn't seen the quarry, if its squatting or over a brow I hiss quietly, she will trot the beam right out if needed.
same as me-my bitch will trust me- that there is something at the end of the beam and trot out till she connects with it