I didn't understand the second sentence's explanation. "Which you obviously do."
Sorry my explanation wasn't very clear.
"Which you obviously do" is something you would say to someone if you were acknowledging something about them that was readily apparent, or easy to see. For example, if you visit a friend in the hospital, and they appear to be very lonely and sad when you get there, you might say "I brought you some flowers in case you needed to be cheered up, which you obviously do."
Also I can say that for the last sentence?
"Are you hiding?"
"Hiding" isn't
quite the same as "keeping low." If, for example, you are a drug dealer, and you hear that the police have been "trigger happy" lately, you would keep low by not going in the neighborhoods where you usually buy drugs, you wouldn't associate with known criminals, and you would be cautious when driving, obeying all laws, so as not to be stopped by the police for any reason, however minor. So you wouldn't really have to hide, or stay out of sight, you would just try to blend in with the rest of the crowd.