You can exaggerate appropriately, but you can't forge it because it is easy to be exposed. HR is very important, they won't check it, but they will verify it from the conversation with you during the interview. If you don't have real experience and talk a lot, the lies will be debunked, but the loss will outweigh the gain, so I advise you to exaggerate on the basis of truth, and you can handle it with ease.