* "Pick their brain": This idiom implies a desire to learn from someone's knowledge or experience.
* "Quiz them": This suggests a more formal or rigorous questioning, perhaps for a test or evaluation.
* "Pepper them with questions": This implies a rapid-fire, relentless questioning.
* "Bombard them with questions": This is similar to "pepper them with questions," but even more intense and overwhelming.
* "Badgering them": This suggests an aggressive and persistent questioning, often to the point of annoyance.
* "Grill them": This implies a forceful and intensive questioning, perhaps in an interrogation or interview.
* "Pester them": This implies a persistent and annoying questioning, often about trivial matters.
The best idiom to use depends on the specific context and the tone you want to convey.