When I talk to people about the things my family does, I don't use honorific language about ourselves.
When I talk with other people about the actions of my family, I use humble expressions.
この場合、次のような言い方ができますよ。
ーWhen I talk to people about the things my family does, I don't use honorific language about ourselves.
「私の家族がすることについて人に話すとき、自分たちに尊敬語は使いません」
honorific language で「尊敬語」
ーWhen I talk with other people about the actions of my family, I use humble expressions.
「他の人に家族の行動を話すとき、謙譲語を使います」
humble expressions で「謙譲語」
ご参考まで！
カナダ 
