How do I make non-buddhists help understand I operate with a different view? I have started on my path not very long ago and because I'm very unsure where it will take me, I am hesitant to label myself as a Buddhist or even a meditator or such. Also where I live, eastern schools of thought are not well known anyway.

In certain social situations (most recently at the office Christmas party) I am usually nagged to relax more or to enjoy myself more. I understand that these are good intentioned tries to make me have a similar experience to what these people deem as joyous. However I don't feel anxiety or loss of comfort just because for example I don't get drunk and dance in a very animated way. In fact I'm usually quite content to just lean on the bar and observe people and be mindful of what's happening. I have yet to meet a party goer who will believe this. 

Do you have any advice on how to try and help these people understand that I don't partake in their experiences because I don't find them wholesome and ultimately fulfilling without having them brand me as a weirdo or a liar? Specifically without mentioning Buddhism, meditation, mindfulness and similar terms? I'd like to convey believably that there are other ways to enjoy yourself, not just drinking and hitting up attractive people.

Thanks!
As long as what you are doing is not immoral in my case I would go along with what the others are doing.

Main point is by doing this you should not accumulate more fabrication. One way is to reduce contact through it is not very effective, which you are trying now.

The more effective way is to go along with the crowed but what every you do be mind full of the sensation and its impermanence. It is reaction of clinging or aversion to the sensation created when you come in contact with something which causes fabrications. This is what you should actively avoid. Though you might not chase sense pleases you have to go with the flow in social contexts if you want to be a householder.