Most candidates "prepare" for an interview by reading a list of questions the night before — and it shows. Real preparation is a process that turns nerves into confidence: research, anticipate, rehearse out loud, and handle the logistics. Here's the complete step-by-step. (For the final stretch, see our week-before checklist.)
Step 1: Research the company and role
- Read the job description closely — note the skills and responsibilities they emphasize.
- Understand the company's product, mission, and recent news.
- This feeds your "why this company" and "why this role" answers (our guide).
Step 2: Anticipate the questions
- Common HR questions — tell me about yourself, strengths/weaknesses, why you.
- Role-specific technical questions — review the fundamentals for your field.
- Behavioral questions — prepare 6–8 stories in STAR format.
Step 3: Practise out loud (the step everyone skips)
Reading answers in your head is not practice. The reason capable people freeze is that the interview is the first time they've said their answers aloud. Rehearse speaking — your intro, your stories, your technical explanations — ideally with something that asks follow-ups, until it's natural.
Step 4: Prepare questions to ask
Have 2–3 thoughtful questions ready (our guide) — it signals genuine interest.
Step 5: Handle the logistics
- Test your tech for a video or phone interview.
- Plan your route or setup; prepare your outfit (our guide).
- Sleep well; arrive (or log in) early.
The highest-leverage step
If you do only one thing, practise out loud. Greenroom runs a real voice interview that asks the questions you'll actually face, follows up, and gives feedback on your answers, pace, and clarity — so the real interview isn't the first time you've spoken. Pair it with our anxiety and week-before guides.
Frequently asked questions
How do I prepare for an interview step by step?
Follow a process: research the company and role closely, anticipate the questions (common HR, role-specific technical, and behavioral in STAR format), practise your answers out loud until they're natural, prepare two or three thoughtful questions to ask, and handle the logistics (tech setup, route, outfit, sleep). The out-loud practice is the step most candidates skip and the one that matters most.
What is the most important part of interview preparation?
Practising your answers out loud is the most important and most-skipped step. Reading answers in your head isn't practice — capable candidates freeze because the interview is the first time they've actually said their answers aloud. Rehearsing speaking, ideally with something that asks follow-up questions, builds the fluency and composure that turn nerves into confidence.
How far in advance should I prepare for an interview?
Start as soon as you have the interview scheduled — ideally several days to a week out — so you can research thoroughly, prepare and rehearse your stories, and review technical fundamentals without cramming. Use the final day or two for logistics and light review rather than learning new material, and get good sleep the night before.
How do I practise for an interview effectively?
Rehearse out loud rather than silently: practise your self-introduction, behavioral stories and technical explanations by speaking them, ideally with a voice-based mock interview that asks real questions, follows up, and gives feedback on your content, pace and clarity. This makes the real interview feel familiar instead of being the first time you've spoken your answers.