All sound advice ^^^^
I’ve been in shed loads of interviews over the last 18 months. If they ask competency based qs then approach your answer in the STAR format:
S – Situation (brief description/introduce the scene)
T – Task (describe what you had to do)
A – Action (describe how you achieved task)
R – Review ( was it a success? What would you change for next time)
Be prepared to be asked about your weaknesses. Fading foreign languages, music skills and a tendency to concentrate on professional topics rather than cultural ones are mine. I don’t think those weaknesses are likely to crash the interview.
Also, and I think this is really important; it’s an opportunity for you to research the role further and discuss pay. I’ve been to a couple of interviews out of morbid curiosity only to find the job is better than expected and accepting the offer.
Good luck. I quite enjoy them now!!