This thread lacked pictures.
I"m a first time beagle owner, but these are truths:
1. They do not know their own name. You can yell, 'COME!" until you stroke out, but the dog will do whatever he wants. That is, until I thumb the red button on his collar's control for a half a second.
2. They are bundles of energy. They play hard and sleep very hard. Expect your puppy to be very active when he's awake, probably until she's tired. Once she's tired, forget about it, she's sleeping.
3. Like mentioned before, they WILL overeat/over drink. I've found that my guy grew out of the over eating part (I leave food out for him now) but he will over drink if given the opportunity.
4. She may or may not have a tender stomach. My guy will throw up on the drop of a hat, and we still don't know why. No scraps and a steady diet of good dog chow solved this.
5. As mentioned before, teach him 'come, tallyho, or g*damnit beagle get over here!' ASAP.
I'll end with a quote I read here and that I will attempt to butcher, "There's nothing quite so beautiful as the sight of a beagle's extended tail as he crosses the crest of the horizon while you call him as you cuss yourself blue in the face.