Hello @Nikie , 😃
Thanks for your post and welcome to the TeamViewer Community!
There are different ways for someone to remote connect to your device. The most common way is by providing your TeamViewer ID and random password to your partner.
We have this amazing article that illustrates this process: 📄 Connect via TeamViewer
Let us know if this is what you're looking for, or if you're looking for a more specific type of remote connection like easy access.
Have a great day!
Best, Carol