Making introvert speak when entering a room??

Question

So I’m naturally an introvert. And I just don’t say hey when I walk into a room. For some reason that’s a big problem for my step mom and now my dad too.
Well I just moved into their house and that was one of their stipulations for me living here. That I’d have to say hey to everyone when I walk into the room.
Well today when I came down stairs my step moms like “HEy”. An I said hey back. I got some water then decided to go back up stairs, well she decided to strike up a conversation. We talked about school for a second And I wasn’t really TRYING to stand there an have a conversation so finished it an I went back to the room.
Later I hear her complaining to my dad (idk about what) idk if it was me or her daughter.    But I heard her say my name and she’s completely bitching. And I haven’t even done anything wrong. 
Yes I’m assuming..
But I wouldn’t be shocked if its about me not saying hello to her as soon as I walk into the room.
Is it THAT rude of me not to say hey??
And it’s in the house not a public setting so I figured it’s okay if I just walk by an get water without saying anything?? I really don’t understand how that’s wrong.
They say it’s rude because I should acknowledge their presence, but I genuinely don’t understand?? 
It’s also one of those things, if I wanted to have a conversation I would, but I somewhat don’t see the point it feels like i have to be “professional nice” at the house with family?? Like it’s just me I don’t get what the big deal is

Answer

I personally think an individual should put on their nicest manners for their family. 
So here’s the thing. Not acknowledging someone is sort like saying they don’t exist.  They may say it’s simply about being polite, but the real issue is that not acknowledging someone makes them feel invisible. 
Also, having friendly and social conversations is a normal part of family life. Just walking away or making the conversation awkwardly difficult could be considered rude. It’s also unnecessary.  If you actually are busy. Homework or something, then say ‘hey, I’d love to chat but I’ve really got to finish that essay. Catch up at dinner?’  Polite conversation makes the world go ‘round. Even among family.  You might hate small talk, but you still have to engage in it if you want the atmosphere in the house to be pleasant. 
Introversion is not an excuse for rudeness. I say this as an introvert.  Since y’all live in the same house there needs to be an effort to adapt and since it’s their house you’re going to be the one doing the adapting.

Answer

If you are coming in from outside I would definitely expect you to say hey. But if it's that you just go from your room to the kitchen to get water I  wouldn't. As for my kids they will come by themselves to talk to me, often more than I can take lol. I find it awkward to have a conversation with someone who obviously doesn't want to talk right now. I don't even think it necessarily has got something to do with being an introvert some people just talk for talking sake and others choose to talk only when they think they have something important to say.

Answer

Would you be willing to acknowledge with eye contact and a smile?

Answer

I’m the same way, I’m very introverted and this isn’t something I naturally do. I notice when I’m at work that I need to make more of an effort to do this when passing by my coworkers. To me, I’m just a quiet person but I don’t want to make the wrong impression and it doesn’t take much from me to just quickly say hello.

Making introvert speak when entering a room??

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