To understand you and to see you can communicate at work. Speaking another language is often a bonus.
How to say it
1Speak a little slower than feels natural and keep sentences short.
2It's fine to say “Could you repeat that?” or “Do you mean...?”
3Mention your other languages as a strength where it fits the job.
For example
“Sorry, could you say that again a little slower? ... Thank you. Yes: in my last job I often helped customers who spoke Polish, so the team came to me for that.”
Use your own words and your own story. This is only a shape to follow.
Try to avoid
Apologising for your English
Rushing to hide your accent
Practise it
Sam will ask: “Tell me about a time you had to explain something clearly to someone.”