How to use an I2C chip? (Adafruit MMA8451)

Ok, I can get a few things consistently from the sensor including the orientation, but I found this section:

Many applications use the accelerometer’s static acceleration readings (i.e., tilt) which measure the change in acceleration
due to gravity only. These functions benefit from acceleration data being filtered with a low-pass filter where high frequency data is
considered noise.

In the documentation, I wonder if I'm getting "static acceleration" data rather than actual acceleration data, I'll have to dig more tomorrow, my brain at this point is mushy .. xD
Thanks for your help both of you :)