Soliloquy:
Soliloquy is a dramatic technique of speaking alone on the stage. Soliloquy is a dramatic convention of exposing to the audience the intentions, thoughts and feelings of a character who speaks to himself while no one remains on the stage. For example, four lines of Hamlet's famous soliloquy are quoted here:
To be, or not to be: that is the question:
Whether 't is nobler in the mind to suffer
The slings and arrows of outrageous fortune,
Or to take arms against a sea or troubles,
A soliloquy is different from an aside. Though, both in soliloquy and in aside only one character speaks, in aside some other characters remain present on the stage but in soliloquy none is allowed to be present on the stage. A soliloquy is also different from the dramatic monologue. The soliloquy is a dramatic technique but the dramatic monologue is a form of poetry in which a single speaker speaks to a silent listener who responds by physical gestures.