when I find my phone what do I do?

If you went through the lost-iPhone sequence, and had marked the iPhone as lost…

If your iPhone, iPad, or iPod touch is lost or stolen - Apple Support

…and having now found it, see the following for what to do to un-mark the iPhone as lost:

Mark a device as lost in Find My on Mac - Apple Support

elwillie Said:

"when I find my phone what do I do?: I have found my phone now what do I do"

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Please Specify: What exactly is occurring, now that you have found it?

Are you Locked Out?: If so, go here: If you Forgot the Passcode on your iPhone, or your iPhone is Disabled - Apple Support