Once you have set up your device targeting, you need to optimize your ads for each device type. This means creating relevant and engaging ads that match the user's intent, context, and screen size. For desktop ads, use clear and concise headlines, descriptions, and extensions that highlight your value proposition, offer, and call to action. Include keywords that match the user's search query and intent as well as ad formats like text, image, video, or responsive ads. For mobile ads, use short and catchy headlines, descriptions, and extensions that capture the user's attention and urgency. Include keywords that match the user's search query and context as well as mobile-friendly ad formats such as call-only ads, app install ads, or responsive ads. Don't forget to include mobile-specific features like click-to-call buttons, location extensions, or app extensions. Lastly, for tablet ads use headlines, descriptions, and extensions similar to desktop ads but with adjustments for the smaller screen size. Use keywords that match the user's search query and intent plus ad formats compatible with tablets like text, image, video, or responsive ads.