How to make sure my iPhone is safe to be used by others?

Like if I want to show a friend a photo and they start going through other photos and come across an embarrassing:
Photo
Text message
Web history (like once my friend saw my history of how to get rid of clammy hands YIKES!)
But anyways is there other things I should check like any other things I'm missing
[please make a list]

Be blunt tell not to go thru I personally think its rude when people go further than you showed

Just delete your history every day, or every time you look up something weird! Otherwise, not much you can do… Just don't hand over your phone I guess. But I get what you mean and sometimes it's hard not to!

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