If the shoe fits wear it
In zh-yue 如果鞋啱腳,就著。
This idiom is used in Cantonese to mean that if something applies to you, you should acknowledge it.
Example
"佢俾人告發講大話,佢話: "如果鞋啱腳,就著。" (He was accused of lying, and he said: "If the shoe fits, wear it.")"