Final answer:
When conversing with a coworker who uses an interpreter, you should face and talk to your coworker, maintain good lighting, speak clearly, and be aware of your body language for effective and respectful communication.
Step-by-step explanation:
When speaking with a coworker who uses an interpreter, the most appropriate and respectful approach is to face and talk directly to your coworker. Although the interpreter plays a vital role in facilitating communication, it is crucial to engage with the person you are conversing with, not the intermediary. This means maintaining eye contact with your coworker, ensuring that your face is well-lit, so your expressions are visible, which is important for the coworker to fully receive non-verbal cues. Additionally, keeping your hands away from your face helps to prevent obstruction of your expressions or any lip-reading if your coworker relies on that, and enables better visuals for the interpreter, who may also need to see your mouth and expressions to do their job effectively.
Remember to speak slowly and clearly to facilitate understanding, which is particularly beneficial if there's any audio delay during virtual meetings. Be mindful of your body language and monitor the distance between yourself and the coworker, adhering to their comfort with personal space. Lastly, choose your words carefully and remain open and respectful in the interaction.