She scored straight As in General Knowledge, Economic Studies, Business Studies and Mathematics with a 4.0 Cumulative Grade Point Average (CGPA).
"I was lost for words when my teacher told me the good news as I could not believe I was ranked Number 1 among 35 top students in the State.
"It is also a first time for me as I have not been among the top scorers for Penilaian Menengah Rendah (PMR) and Sijil Pelajaran Malaysia (SPM)," she said.
Liew said this to Daily Express when met at SMK Membakut here after the announcement of STPM 2013 overall result by State Education Director Datuk Jame Alip on Wednesday.
On her secret, she advised students sitting for the STPM this year to enjoy the learning process and try not to be stressed.
At the same time, she said it is imperative to pay attention in class and do regular revisions.
Liew, whose father is a small-time trader selling snacks and mother who is a kindergarten teacher, said her ambition is to be an accountant.
In addition, she said she will apply for scholarships to pursue her dream and hopes to continue tertiary studies at local or overseas universities.
Meanwhile, her classmate Lim Chun Yuan, 20, said scoring all As in General Knowledge, History, Economics, and Business Studies is a meaningful achievement for him to apply to read law at the top and oldest university in the country, Universiti Malaya.
He said he felt part of his dream has been fulfilled and is hopeful that his excellent result would be his ticket to the university towards his journey to become a lawyer.
"I am so happy with my results as I did not get perfect As in all three semester exams at school.
"I am also pleased that my choice to sit for STPM 2013 was the right decision although the studying and learning were challenging and all my efforts paid off," said Liew who is eldest of two in his family.
Liew, whose father is a wholesaler selling fish, said he will apply for scholarships from the State Government, and Public Service Department (JPA).
On his secret to studying, he said he would advise those taking STPM this year to be mentally strong and persevere.