1. … you won’t have to answer questions off the top of your head during the interview.
off the top of one’s head 信口地
2. Don’t worry about having butterflies in your stomach before the interview.
have butterflies in one’s stomach
(做某事前)惊慌，紧张
e.g. I always have butterflies in my stomach just before I perform on stage.
3. Smile when you shake hands with the interviewer and look him or her in the eye.
look somebody in the eye
直视某人，正视某人
e.g. I asked him to look me in the eye and tell me what he had done with my bike.
4. You should follow it up by writing to …
follow up 对……采取进一步行动，加强
e.g. Lucy followed up her interview with a telephone call.
5. Nod your head when you agree with…
