To create an account, just head to our website https://www.slido.com/, hit the Sign Up button at the top right corner, and fill in the required information. This creates your account and you can start using it straight away. There is no need for account activation.
Some companies do have a special setup for accounts in Slido though, so if you are experiencing any issues, please reach out to our support to support@slido.com and we can take a look at your account specifically.