This staff, L is a happy-go-lucky guy. He laughs most of the time even being scolded. No doubt it's nice but some customers dislike us for being not serious.
One day, a lady told me that she needed something herbal for her mum. Since L was just beside me, I asked him to talk to her. But she hesitated and told me that he was not serious as he was laughing away with another worker.
Anyway, I told her that he's new but he knew a lot about herbal stuff. Then only she consulted him after confirming that he could be serious too.