if we create a new crypto exchange how to attract user for that?
It's a business and you should have detailed plan on how you will start marketing your newly created exchange.
what are the methods we can use to get real users?
Are there fake exchange users? there are bots but it's also set up by a real user. You need to have extreme marketing to get more users that will be loyal to your exchange but don't expect it, there's war in exchanges where the most convenient ones are remaining the scene.
Guaranteed 24/7 support, low or no trading fees, easy interface, user-friendly.