When commenting on a friend's Douyin travel video, you can consider commenting from the following aspects: 1. First express your appreciation for the video, such as "The video is really well shot!" "The picture quality is great!" etc., start with

Give some positive comments.

2. Based on the video content, click on your favorite attractions or scenes, such as "The scenery is so beautiful!" "That pink rapeseed field is super romantic!" 3. Ask for specific travel information, such as location of attractions, ticket prices, and accommodation.

Recommendations, etc., indicating that you are also interested in going to these places.

4. Comment on the food shown in the video, such as "This grilled fish/meat skewers look so tempting!" 5. Praise his travel photography skills, such as "He's so good at shooting, it's totally blockbuster quality!"

6. Finally, you can add some auspicious words to wish him a happy journey and all the best.

7. Avoid making overly negative comments. Even if something is not satisfactory, use a positive tone.

Overall, comment in a positive, friendly, and enthusiastic tone. You can not only like the video, but also express your goodwill, making the comments look more high-quality.