You leave it.

You pick up your phone. You notice it Has almost half it's battery left so you decide to just put it back. You head downstairs as you see your friends mom making breakfast. You take a seat at the table as your friend walks in, he gets seated as well. His mom puts the breakfast on the table you and your friend start to make some sandwiches as his mom says she going for a quick rinse while you and your friend eat breakfast. Your delighted to hear it and are happy you left your phone where it was. Just thinking about it makes your dick hard under the table.