You can create a good impression by being:
• punctual - be at least 10 minutes early.
• dressed suitably - wear (no strong or 'loud' colours)
• well prepared - take your job application folder to the interview, as well as a list of questions you may want to ask
• polite - have the right attitude whenever you speak or answer questions.
• confident - ask the interviewer to repeat or explain a question if you do not understand it