糸口

とても魅力的な人に初めて会って、話の糸口を見つけるのは、たいていかなり難しいものだ。

People usually find it very difficult to break the ice when they meet someone extremely attractive for the first time.

わずかなヒントを糸口にして、正しいこたえを見つけた。

He took a slight hint as the start and found the correct answer.