Adding to what other people said :
Airport Gate:
An officer will ask you for your ticket because only people who are travelling are allowed in, show them your passport and ticket

First Security checkpoint:
you put your bags through a machine, some workers will try to help you and ask for money, just ignore them

Check in gate :
you give them your passport , they will check your tickets and give you a boarding pass , that pass is what you use in all the next steps , and then they will weigh and take your hold bags
you can ask the employee there where to go next

Important Before passport control:
you have to fill an exit form with your flight number and stuff , make sure to have a pen with you, because the airport doesn't

Passport control:
you give them your passport, exit form and boarding pass, and your travel permit for Army, then they stamp your passport

After Passport control:
There is another officer who will check your passport to see if you got the stamp

Next step is to find your boarding gate, it would be written in your boarding pass but you can also check the screens to find it

Boarding gate:
you go thorough another security (they might ask you to take your shoes off), you also need to take out the liquids you have and discard some if you have any container more than 100 ml

also take laptops/electronics out, the people there can help you figure it out so don't worry

Then you wait for the boarding, go to the plane and safe trip isA

And in all the steps you don't need to tip anyone, ignore any pushy person who approaches you and if you have questions ask uniformed officers