Hi
I am working in a pvt company having 4 months experience.I usually take interviews for the candidate but I am unable to judge the attitude of a candidate.
So,please let me know how to judge right candidate

Its nice. First I would like to appreciate your attitude and decision to get this knowledge. It shows that you want to carryout your job sincerely for the welfare of your org.
Apart from the answers given by the candidate carefully but casually note the behavioral attitude of him or her mainly the body language,during the period of interview. That will help you more. Can be easily gauged for a real sincere and dedicated candidate.
all the best

Ask questions that extract the views of the candidate over a given situation. For example, ask him as to how he would respond to a request from a colleague to help her in doing some work which she finds it difficult, more so when he himself has handsful of work . This question is only by way of example and came to me instataneously. You need to frame such questions after good thinking and see whether the candidate's replies are consistent.

Just like you, I have faced the same issue. I have over 1 year of experience but have recently started taking interviews on the phone majorly. While recruiting I do the pre-screening and I decide which candidates to call for interview. I basically judge on points like education, gaps between jobs, how long one person stays in one job and communication Skills. I take interviews of freshers. Here the technical team judges more ( I work in an IT Comp).

I just took one interview recently, and while i was forming a report, I got confused as to whether she would be good for the organization or not. I do feel that while taking face to face interview we can judge whether a candidate would be suitable for the job and company or not.

I know interview skills will become better with more experience but right now I just do not trust my judgment.

I am hoping we can become better soon in this.

Attitude of a person gauged on the replies that candidate give and not on his body language. What if candidate is from outstation and you were to take interview on telephone or Skype or Google Talk?

Behavioral interviewing works whether in face-to-face situation or telephonic interview.

"body language" is result of one's thought process. Behavioral interviewing is aimed at one's thought process which results out of past incidents in candidate's career.

Lastly, "face reading" is mystic. No science can depend on mysticism and should have its own methods to solve the problems. Management science is no exception to this rule.