(1) The speaker should be correct, solemn and elegant; Don't dress too weird, don't wear exaggerated earrings, necklaces, etc. And don't have too many shiny accessories on your clothes; Avoid dyeing colored nails.

(2) The hairstyle is natural, simple and neat, and there is no weird hairstyle or hair dyed in strange colors, and the forehead hair does not exceed the eyebrows. Male lecturers prefer short hair and normal colors, while female lecturers are not allowed to use exaggerated headdresses.

(3) If you need to wear glasses, you must wear ordinary optical lenses. The lecturer should pay attention to avoid some small moves when giving lectures. For example: scratching your head, scratching, pulling out your ears, sneezing, picking your nose, rubbing your eyes, etc.

(4) Male lecturers should try to wear a suit and tie with light makeup; Female lecturers wear professional clothes, so they can wear light makeup appropriately.