How to tell someone is hacking?

Im new to counter strike and i don't have a prime account yet. Anyone knows how to tell whether someone is hacking?

there are lots of video on youtube about hackers in csgo...that will give you some idea on how hacking works in that game...

I did watch them but i still can't tell

i found a steam guide for you to start with https://steamcommunity.com/sharedfiles/filedetails/?id=294510159

just report tham and cs go team will see his play and than thay will bann him or not

There are aim hacks wall hacks and more and you can report its better use the prime account or buy

Prime account is expensive

Its twelve dollars

When you hit level 21 you get free prime

Just pay attention that if someone is more able than you, he/she is not a hacker. Based on the hack, a hacker shows a special behavior without any exception. If someone use wall hack, then he/she always knows where you are and spot and shot you first moment he/she sees you. If someone use hack for headshot, then they never miss. Things like that.

watch replay

Its eazy for wall hacks.If you are crouching or wallking slowly(they can't hear you) and enemy is in same hause as you.And he somehow finds you eazy,even tho you don't make any footsteps.

Press tab, right mouse, click on player and go to report, and go for Aim Hacking, wall hacking or other hacking

Review death cam. One time, I ran into a stupid hacker who bang the wall accurately on every bullet, while running around without actually seeing me.

watch some overwatch demos in csgo and you get xp bonus and you'll understand who's hacking