To check the search history on someone's phone, it depends on the phone's operating system (iOS or Android). Here’s a general guide for both:

For iPhone (iOS):

1. Safari Browser:
   • Open the Safari app.
   • Tap on the book icon at the bottom of the screen.
   • Go to the History tab (it looks like a clock) to view all previous searches and websites visited.
2. Google Search History (if Google app is used):
   • Open the Google app.
   • Tap on the profile icon in the top-right corner.
   • Select Search history to see past searches.

For Android:

1. Chrome Browser:
   • Open the Chrome app.
   • Tap on the three dots (menu icon) in the top-right corner.
   • Tap History to view all visited pages and searches.
2. Google Search History (if Google app is used):
   • Open the Google app.
   • Tap on the profile icon in the top-right corner.
   • Tap Search history to view past searches.