I'm planning to eat my meal straight from the buffet table.
Why would you eat straight from the buffet table?
Because I'm really hungry and I'm not a picky eater.
That's alright, but you should eat from your own plate instead, you would be more comfortable that way as well.
Don't be a party pooper.
Being greedy is rude. Not to mention that it's not hygienic to eat directly from a buffet. You'll need to wait just a bit longer and put your food on a plate like everyone else.