You will want to think through these considerations in advance, but know that you may need to make changes the day of the event. Here are some basics to consider. A person who is deaf should be able to see the speaker and the interpreter simultaneously. Your visitors who are deaf should not have to when they are alternating between looking at the speaker and the interpreter. Avoid placing the interpreter in front of visually distracting walls or curtains and where glare or backlighting makes the interpreter difficult to see.
Experts recommend placing an interpreter in front of a plain, dark background.
Finally, ensure that the interpreter can hear the speaker. Seat people viewing the interpreter together and near the front for the best view. Try to eliminate other people walking, standing, or sitting between the interpreter and the viewers. For audiovisual presentations such as slides and videos, the light level in the room is often low to make these visuals easier to see. However, it is important to keep lights bright in the area where the presenter and interpreter stand.