Open YouTube.
In the search bar, type "girl and boy dancing hip hop" or a similar query.
Press "Enter" or click the search button.
Select the "Videos" tab to filter the search results to only show videos.
Browse through the search results and click on the video that interests you to watch it.
You can also use the filters on the left side of the results page to narrow down your search by factors such as upload date, video duration, and more.
Here are some additional tips that may help you find the video you're looking for:
Use specific keywords in your search query. For example, if you're looking for a video of a particular hip-hop dance style, include the name of that style in your search.
Check the video thumbnails to get a preview of the content before clicking on a video.
Read the video titles and descriptions to see if they match what you're looking for.
If you find a video that's similar to what you're looking for, you can explore the "Suggested videos" section below the video to find more related content.
With these steps, you should be able to find a YouTube video featuring a girl and a boy dancing hip-hop that suits your interests and preferences.