For me, it really depends on the situation. In my life when I am dealing with friends and family (people I genuinely trust, love, and care about) I hate the idea of facades. These people see me for who I am. I don't censor my thoughts, the things I say, or change who I am around them. If my house is messy, I may straiten up a little bit, but I'm not gonna ban them from my home until everything is spotless. They see me without makeup and wearing my "bum around the house clothes" all the time. I want people to know me for who I am from the get-go...it's so much easier in the long run than trying to maintain false appearances.
I will say though, when I am at work I am much more aware of how I come across. I work in an upscale restaurant as a server, so naturally, serving is all about first impressions and how you carry yourself. Good impression = better pay. I make sure that my appearance is neat, that I put on a smile, and that I am polite and helpful even when I don't want to. Sometimes I really enjoy my job (as in when I get to have genuine conversations with my tables...I enjoy seeing my tables be happy), although there are those customers who are rude, monopolize my time with incessant and petty requests, and treat me like an uneducated slave. Don't get me wrong, I am there to serve, but at the point where I am refilling someones glass for about the 4th+ time I really feel like saying, "Hey buddy, I have other tables to take care of besides yours...is it really that hard to hydrate yourself throughout the day or were you just holding off until you can get someone else to do it for you?" Yeah, the restaurant business is one big facade.