If you've only got three words, you need to make sure the ones you choose will leave a big impression on the interviewer. The following words are always seen as desirable; Dependable, Punctual, Honest, Driven, Reliable, Organised, Positive, Achiever, Ambitious, Energetic, Dedicated, Friendly, Motivated, Flexible, Responsible.

In such a situation you can use positive words that bring about your most positive characteristics. The answer should also be ground in solid logic and should reference professional achievements.