Here are a few pointers. First, choose the appropriate type of question to ask. Questions can be categorized into two basic groups, open and closed. Ask OPEN questions when you want to engage the other person in conversation. Open questions literally open up the dialogue.
Open questions require more than a word or two to answer adequately.
When Why . Be careful when asking Why questions. Too many can come across as confrontational. Subjective questions - use these when you ask for an opinion. Objective questions - these are to ask for specific information.