You need to make a good impression; a good first impression is everything. That's what they say anyway.
You have to think about others. That's what they say anyway.
If I did everything people say then I'd never actually do anything or go anywhere.
My manager thinks I'm an extrovert. I know what gave him that impression, but I'm not. When there's a gap I'll fill it in and when there's a job to be done I'll just do it, but I don't go out of my way to talk to other people. "Hi, I'm the new guy. I don't actually have anything work related to talk about; I'm just here to waste your time talking about the weather and start the process of you hating me sooner." ... Does that make me homophobic?
The other day I learned that I've made some questionable first impressions. No matter how much I think about others there will always be some way I didn't and that's what will offend them.
So far I haven't found any allies, but it will only be a matter of time before I make some enemies.