"自分の好きなことをやってる人はカッコよく見える"
- People who do what they love look cool.
- I think that people who do what they love are really cool.
- It's really attractive when someone does what they love.
相手が自分の趣味を語ってた時に伝えたい言葉です。
- You're really attractive when you talk bout what you are interested in.
- I like listening to you talk about your interests.
I think it's really cool when people follow their passion and do what they love.
ご質問ありがとうございます。
この場合、相手が自分の趣味を語ってた時「[自分の好きなこと](https://eikaiwa.dmm.com/uknow/questions/61773/)をやってる人はカッコよく見える」と言ったいなら、自然な英語で「I think it's really cool when people follow their passion and do what they love.」と言えます。
ご参考になれば幸いです。