Yes it is possible for yourself or someone else to see see what websites you visit on WIFI.
A lot of regular users of WIFI may not even realize it or know how to look up what you're doing on WIFI so it doesn't matter and most hotels, motels, Restaurants etc do not really care what you're doing on their WIFI.
That is unless you're doing something illegal and then the police get notice of it and then they make the company lookup what you're doing.
Even your internet provider can see what you're doing on the internet and they can see more than what other people can see.
But they also do not care or look at your internet browsing history unless you do something illegal.
Your internet router has to be configured and setup for you to see the URL of the websites that are being visited as well as the ip addresses.