To work out your salvation, you must get on the word daily. You must be fed with the word of God. You must continue in the word and endeavour to grow in it. Get on the word daily, meditate on it continuously and let it be a very part of your life.
The life of Christ in you has to be evidenced to everyone around you. If people around you are not sure of how to categorise you as a born again Christian or not, then it may just be about time to check your Continuous salvation.
After you are saved, you must continue to live a life of the word and fashioned after Christ Jesus. This lifestyle must be evident to all around you, because God accepts you by faith, men on the other hand accept you by works.