The present disclosure provides a data transmission method and a first electronic device. The method comprises: displaying a sharing mark on a display unit of a first electronic device; obtaining, by a sensor unit of the first electronic device, sensing parameters which indicate an input operation of an operator; determining that an operation object of the input operation is a first object displayed on the display unit based on a first parameter from the sensing parameters; determining an operation trajectory of the input operation based on a second parameter from the sensing parameters; determining that the input operation is a sharing operation associated with the first object when the operation trajectory moves towards the sharing mark; and responding to the sharing operation.