Pretend like nothing is ever going on in my life

I have this tendencies when I meet acquaintances and old friends to pretend like my life is the same as always and that nothing is going on when in fact I am on a daily adventure and battle to evolve and rise and achieve. I am wondering why exactly I do this, I think it's partially cause I don't want to talk about anything that isn't concrete so I default to the same story "not much just working same as always" .. anyone else knows what I'm talking about?