Serious Charged with felony [im not convicted]

So i received a letter in the mail that i am being charged with a Felony. One day it will come where they come to my house or i get suspended from court. Dont worry im not scared i been to jail a few times, but i want to know what should i say when interrogated just be silent and shut the fuck up? or talk bullshit too see what they know? i know it's real because the law offices that sent them are literary down the street from me & also my brother received one

Please don't reply if you are not helping or concerned.





EDIT: i will upload anotherpicture soon didn't realize the webcam fucked it upno idea what the charge is it was sent to me by 2 different attorneys, Also n they are not web related offences these are IRL incidents