我努力显得专业，不抱成见，多问开放性的问题。
I would try to be professional, non-judgmental and to ask "open" questions.
我知道有好些药剂师喜欢穿大褂，就为了显得专业。
I know a lot of pharmacists wear a coat because it makes you look more professional.
你不必总是要靠花哨的照片或者疯狂的自定义背景来让PPT显得专业。
You don't always need a fancy photo or crazy custom background to make a presentation look professional.
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