Keywords are supposed to describe each image so that a customer can find them via various search engines.
Therefore, each image should have its own keywords that describe that specific image.
Your name might be a common keyword, but generally, keywords should be individualized.
If you use lightroom to assign keywords, and export the images (and keywords) in a custom FAA export from lightroom to a folder for subsequent upload to FAA/Pixels, then the keywords, title, and description will already be in the uploaded files, and you won't have to enter them when you upload.
This is particularly helpful because if you do the work of entering the keywords while online on the upload page, you may time out, and your upload and keyword, description, and title lost in the process.