Please cut it like this.
私はこう思います。
I think so.
Indicates degree or extent, often with adjectives or verbs. Implies a degree close to the speaker's perception.
こう暑いと、何もする気が起きない。
When it's this hot, I don't feel like doing anything.
こうたくさんあれば十分でしょう。
If there's this much, it should be enough.
Interjection used as a verbal pause or filler, similar to 'uh' or 'well' in English. Common in hesitant or thinking speech.
こう、なんていうか、ちょっと難しい問題で。
Well, how should I put it, it's a bit of a difficult problem.
こう、ええと、明日はちょっと…
Uh, um, tomorrow is a bit...
If you do it this way, it'll work out.
When it's this hot, I don't want to go outside.
He always says it like this.
I like this kind of book.
こう states a specific way close to the speaker, while どう is the question form asking about manner ('how').