GET TO THE MEAT QUICKLY. Lay out the problem/question first, and say “here’s how you're addressing this question”. It is important to contextualize your question and show that you have a broader understanding of cognitive science and how your research fits, but don't spend too much time bull-shitting about big-picture stuff, because that's something that anybody can talk about.
Talk about YOU and YOUR EXPERIENCE: Your experience and your ability/skills/qualification is what they want to know, and nobody else can talk about it! (e.g., if you’ve taught a class or supervised an undergrad assistant, get to that topic REAL FAST).
ENGAGE in discussions. Make eye-contacts, talk to them and not to yourself, and it’s also fine to ask them questions (e.g., when they ask you about some specifics of your research, you can ask them ‘are you familiar with X’ that’s relevant for answering this question). This kind of interactional skill helps to demonstrate whether you’ll be a good colleague/teacher to have.
PRACTICE. Make brief notes on what kind of answers you want to give (see common questions below), and practice so you can talk about them fluently. But at the same time, DON'T OVERPRACTICE - you really don't wanna sound like you memorized them all. Be conversational and spontaneous.
THIS IS NOT A TEST. While it's important to practice for your interview, they're not testing/interrogating you - they're interested in hiring you, so they are really just trying to get to know you better. Don't be nervous about exposing yourself or talking about your research - you know your work better than anybody else, so you'll most likely be able to handle any detailed questions about your work.