Where do you add transmission fluid in a 93 Honda civic?

If It's a Manual Transmission, It's located under neath the car. There's two bolts off the case. One to drain the fluid and one Higher up to Check the fluid level. All u do is unscrew that bolt on the side and if fluid starts to pour out then it's fine if not stick your finger in (Of course the car is off) and feel how low it is. Then use a funnel and pour in the fluid through the same bolt hole.

Hope this helps.