* Formal: Est-ce que je parle? (literally "Is it that I speak?") This is the most formal way to ask the question.
* Informal: Je parle? (literally "I speak?") This is a more casual way to ask the question.
* With emphasis: Je te parle! (literally "I'm talking to you!") This emphasizes that you are talking to a specific person.
* To check if someone is listening: Tu m'écoutes? (literally "Are you listening to me?")
The best translation will depend on the specific situation and the tone you want to convey.