YOU SAID:

when the imposter is acting quite suspicious

INTO JAPANESE

詐欺師がかなり疑わしい行動をしているとき

BACK INTO ENGLISH

When the crooks are acting pretty suspiciously

INTO JAPANESE

詐欺師がかなり疑わしい行動をしているとき

BACK INTO ENGLISH

When the crooks are acting pretty suspiciously