When starting a new job it can be a bit tricky to know the official and unofficial hierarchy and when you must follow instructions. When I'm new, I basically do what anyone tells me to do as long as there more senior than me (but not necessarily my direct boss/supervisor/manager). Is this a good approach?
Sometimes at work it is unclear if something is an official policy, or more a personal suggestion made by a colleague. For example with my new job, in the the official offer letter it said "since people in our company may have many different roles, you are free to dress however you like as long as it's respectful" but on the first day of training we were taught not to wear shorts etc. (which is too bad as it gets damn hot). I sometimes see other people wearing shorts, but for all I know they're breaking the rules. I'm using this as a specific example but I'm curious in general to know techniques how to distinguish between advice and policy.
Another example is how we can't be one minute late to work or back from a break, and we actually need to be 15 minutes early to setup our tools so we can start working right on the dot. Lot's of people have verbally told me this, though I would like to see some official documentation. How can I ask for this? In one meeting for new hires we were told we aren't supposed to spend more than 5 minutes a day in the bathroom (the guy who said this isn't my direct boss though he's been with the company for 12 years, so how do I know if I must follow this?).
I ask this question because there's some rules at my job I really don't like and am thinking quitting because of them. I want to make sure I understand them correctly before I do.