The stars don't look COMPLETELY different because, in the big scheme of things, we're hardly moving at all. We spin around once every 24 hours or so, cycle around the Sun once every 365 days, but in galactic terms, we're a drop in the ocean. A grain of sand on a big beach.
I've heard this size explanation before but it still sounds odd. If you were standing on a grain of sand flying through space I reckon your view is going to change dramatically from one moment to the next.[/quote]
Which is what happens to us here on Earth; specific constellations move across the sky overnight, according to our speed of rotation. In my case, they start in the south-east and arc over to south-west and beyond. That's a pretty drastic change in view, even though it takes a few hours to occur. They also appear differently according to the seasons.
But overall, the constellation stays exactly the same, year after year. Because it's so far away.