Normal
Context is everything. Name dropping for the sake of it, then its superficial and unnecessary. If the person you met actually provided you with specific detail that has really influenced your application and then you can build it into your answers, then it is fine to mention someone's name but still lead with you, rather than them - for instance:"I attended an open day and met Joe, Bob and Keith. I learnt about the support trainees get" rather than "Joe, Bob and Keith told me about the support trainees get". Write/speak sentences with you as the focus and what you took away from the conversation, rather than what someone else told you.
Context is everything. Name dropping for the sake of it, then its superficial and unnecessary. If the person you met actually provided you with specific detail that has really influenced your application and then you can build it into your answers, then it is fine to mention someone's name but still lead with you, rather than them - for instance:
"I attended an open day and met Joe, Bob and Keith. I learnt about the support trainees get" rather than "Joe, Bob and Keith told me about the support trainees get". Write/speak sentences with you as the focus and what you took away from the conversation, rather than what someone else told you.