So how do I know what universities want? Start by reading about the university, the course you want to study and the "entry profiles" as these will give you information about the type of student the university is looking for. Universities also want the truth so do not lie about your abilities and they want your writing so do not ask someone to write the personal statement for you. Some areas to cover include why you want to study this subject, what your future career plans are, what you do in your free time, what skills you have (academic and non_academic), what's interesting and/ or different about you.
2. BE POSITIVE. Your statement should not sound staged or stilted, but enthusiastic and motivated. Consider topics which would be easiest for you to put descriptive words to. Your personal statement is a testament of your passions and your earnestness, the image you want the reviewing committee to see of you. That image should never be negative, bland, or boring; you want the committee to say, on reading your statement, we'd like to meet this person. Avoid using "waffle" words (words which qualify your experiences and commitment) such as "rather", "quite", "somewhat", or "probably". Waffle words tend to give the impression the writer is unsure of him or herself; with the personal statement, all writing should be positive and express confidence and directness.