No one can see that you are using incognito mode while browsing. This is because incognito mode works only on your device and does not share any information about you on the web. However, it is good to know that incognito mode only does not save your temporary files and browsing history, but at the same time does not hide your IP address. Your location and device can still be tracked that way. So if you want to browse completely anonymously, you need to take additional actions.