When hiring managers ask interviewer questions about areas of improvement, they want to really hear something legitimate that you’d like to improve and feel you could improve upon.
So when you answer," what skills do you need to improve?", pick a real area you’d like to get better at, but make sure it’s not something essential to the job.
You can choose something you’re already pretty good at, but still trying to improve even more. You can choose something that you learned a long time ago but haven’t used in recent jobs very much. You can name something not directly related to your work but something you’re passionate about learning.
For example you can :
“In my last job, I spoke with a lot of customers on the phone, and became quite good at it. However, a few other people on my team were responsible for most of the emailing when it came to customer service, so I’m a bit rusty in this area. I think email communication is really vital in customer service, because one or two wrong words can lead to the message being interpreted incorrectly. So I’ve been working on reviewing and brushing up on some of the best methods for making sure customers are satisfied with email communications.”