hi fellow beast keepers how would it be known when someone visits your inn, or if they are still there? thank you

Go to Manor -> Buildings. Then click on the Inn - the name, not the picture.

This will bring you to a new page that tells you:

Attracts different visitors. Every visitor gives you a certain bonus. A visitor brings you 50 per day while he stays at your inn.

XY stays at your inn now. This guest is going to rest here for another X days.

Also if you already used an invite for the next guest, it will say underneath

A XY is going to visit your Inn next.