The Hakka people, also known as the Hakka folk, are a Han Chinese folk. For thousands of years, the Central Plains people arrived at the junction of Guangdong, Gan and Fujian, and intermingled with the local indigenous inhabitants, exchanging marriages, and ultimately forming a relatively stable Hakka folk after thousands of years of evolution.

First of all, the Hakka people are Han Chinese, so there is no difference in looks.

Secondly, there are a lot of Hakka people in the junction of the three provinces of Gan, Fujian and Guangdong, so you can just look for one and see. For example, people from Ganzhou in Jiangxi, those around Changting in Fujian, and Hakka people in Meizhou and Huizhou in Guangdong.