Tricky. The two places where I work have discrete but definite etiquette surrounding the making of tea and coffee. I only ever drink water at work which they all regard as a bit odd and health-freaky. Most people think I'm teetotal - that's definitely not the case.
In one place, everyone takes turns making tea or coffee for everyone in our small department. Even the most senior person does it. It's all provided free by the company.
They all ask me just to be polite even though they know I'll say no. I used to feel so awkward about getting a glass of water for myself and not offering water, tea or coffee to everyone that I asked my friend who used to work there. She said I was being daft. I do sometimes bring in biscuits though.
At the other place I move desks a lot but usually sit in a group of the same four/five people depending on who is off that day. They are coffee aficiondos and make just for their desk - it's a bonding thing between them but they're welcoming, because whenever I share their desk they always include me in the offer.
I realised I'd been accepted into the gang last week when someone from another part of the office teased me about eating my lunchtime quiche on a plate with a knife and fork. I didn't realise there was any other way to eat quiche - it was too big to pick up in my hands and munch. We get on well and I knew he was just joking but the man sitting next to me thought I was under attack and said frostily: 'We have standards on this desk. Get back to feeding time at the zoo on yours.'
There's a lot of office politics there that I'm still trying to get 