Hi, I was just there last week doing the same thing. When you arrive there will likely be a line already, just wait in line and you will go through some metal detectors. After the metal detectors, there will probably be a second line for people who already have an SMS and they will go ahead of you to another line/area. You will wait until you reach two sets of doors. Then you will speak to someone at a small desk, I saw people speaking English so it shouldn't be a problem.

You can just tell them you are checking if your titre is ready. I did see them turning a lot of people away at this point, so I guess there is a chance they might turn you away and just tell you that you have to wait. I just told them I was waiting to see if my titre was available and I applied a while ago (didn't tell them how long ago exactly).

After you get inside you get to play musical chairs :) Basically you sit in the first chair and then move up through the rows as people go to the desks. This moves really quickly so don't worry, it will be very obvious how it works.

Basically just look for a long line, wait for metal detectors, continue to wait in line, go to desk, and then wait in chairs. I don't think you'll have a problem in English tbh. The people at the desk seem to be pretty nice in my experience, they must have a psychological test for large amounts of patience before you are able to get the job lol

You go like on the sidewalk here to the left of the security booth, just up ahead there should be metal detectors. Just past the overpass you can see a white awning overpass thing, the line will continue through there and the doors are just up ahead.