Dribble in an area with gate goals. The coach gives instruction for the next turn (e.g., inside of foot, outside of foot, Cruyff, sole of foot, etc.) and gives a signal by raising a cone or bib in the air. Upon seeing the signal, players must dribble to the nearest gate and perform the instructed turn.
Depending on the group and situation, it can be done either so that the color of the gates doesn't matter - or can be instructed that at the coach's signal, players must always find the correct color gate (e.g., red bib/cone in the air -> red gate). The coach uses voice as a signal for the gate color as well, if observation is still difficult otherwise.
Quality factors
Dribbling & touches, observation. Clear weight shift and change of direction in turns?
Key questions
Is the tempo maintained, is observation successful, is dribbling and turning successful without collisions?