Create or use an existing Microsoft account to verify your website through Bing and gain important website metrics.
Click on Website on the top navigation bar and scroll down to the Search Engine Optimization Section. Click edit next to Bing Webmaster Tools.
Copy and paste either your Bing Webmaster Meta Tag and click Save.
After, you will have access to your metrics when clicking the wrench icon, and logging in with your account.
You can get started with Bing webmaster tools here.