Everything above is great advice. I interview people a lot so from my experience, here’s some more advice:
Bring a nice folder with your CV and some examples of your work, if you have any. I love when people do this. It gives something visual to evaluate you by, and since you have time to prepare it, it can only give you extra points. It’s also great to put in your file to help us when we’re reviewing candidates (sometimes, I don’t even remember people I interviewed a week ago – visual cues are very helpful). It also shows that you take the interview very seriously.
Don’t wear too much makeup. A woman came in for a morning interview the other day and the only thing I could think about the whole time was “this is what she was worried about this morning? Fake eyelashes?”.
Or weird nailpolish. Another interviewee had bright orange and blue nails. It was super distracting.
Get there, like, an hour early (depending on the potential for traffic, delays, etc) and have a coffee or juice nearby. If you aren’t there 10 minutes early, you’re late (because every else comes 10 minutes early). If you’re late, you’re out of the game.
On that note, if you have a REALLY good excuse to be late, don’t call 5 minutes after the interview was scheduled. Call as soon as you know you’re going to be late and explain the situation. Then when you arrive, apologise and explain later on in the interview explain how punctual you are.
Think about what you say when you’re talking. Sometimes people tend to get lost in explanations and ramble; that’s never good.
BS (a little). Without going into over-exaggeration, as PP mentioned. If you don’t have experience with some skills/software/etc. that the interviewer asks you about, don’t just say “I don’t know”. Talk about what you DO know, emphasise that you are familiar with something similar and are a fast learner (give example) and that you are super motivated to learn. The interview will be able to detect that you just don’t know, but I prefer that over someone who just says they don’t know. At least it shows that they care and that they are confident in their ability to lean. If it’s a software, mention that you’re willing to learn it on your own time (recently, just saying that secured a candidate for the job at my work).
Answer the question. We carefully design questions to give us a good evaluation of your abilities. If you don’t answer a question fully, you’re missing out and you’ll appear to have comprehension problems. On that note, if you’re not sure you understand a question, ask for clarification (doing this once per interview is totally fine).
GOOD LUCK 🙂