some suggestions followed for reference:
1. write e.mail to inquire if your travel and accomodation expense can be reimbursed.
2. if required, prepare your presentation with the topic of your research experience which fits their PhD project mostly.
3. keep the e.mail contact with the Professor, the group of who you are applying for joining. In fact, he is the person who take most importance for the final decision.
4. be confident rather than arrogant during the interview
Best wishes |