If you want to Gemini sign in then you have to go to the official website of Gemini. To sign up for an account, you'll typically need to provide your email address, create a password, and complete all required identity verification steps.

If you are someone who has lost his MetaMask login password or doesn't want to use it for any reason, then I must tell you that there's a way out of this situation. So, if you wish to sign into your account without using your MetaMask login password, you can take a look at the sections given below where I have explained the complete outlook of this situation.

http://sites.google.com/coinlogs.us/geminisignin/home

http://sites.google.com/metamsklogs.com/metamaskloginn/home