Text messages pop up to preview the text, now this is problematic when the phone is in someone else's hand. Any way to change it??
No its not possible. Only thing you could do is to Give your phone to others in KIDS CORNER.. it wont show the Message Toasts and also restrict the app, features usable for the person.
Lol, if the phone does not have the lock passcode, all you have to do is hit the power button twice to enter the normal mode, don't take my word, try it.
Its like giving someone a burger/fries in a cardboard box and expecting they won't be able to open the box or eat it.