If you are not in counsellor training but have an interest in the person-centred approach, you may want to read something about it in order to learn more about the core conditions of Congruence, Empathy and Unconditional Positive Regard.
Carl Rogers is a good place to start and often the first book recommended is On Becoming a Person. Or you might enjoy The Carl Rogers Reader, edited by Howard Kirschenbaum and Valerie Land Henderson.
You may also want to try:
Person Centred Therapy Today, by Dave Mearns and Brian Thorne
Person-Centred Counselling in a Nutshell, by Roger Casemore
Learning and Being in Person Centred Counselling, by Tony Merry