Snape grinned approvingly at Draco's comment about the dungeons: clearly Draco was already planning to annex as much dungeon territory as he could manage: ever the Slytherin.
Snape raised his glass, replying to Draco's toast, "To survival, ours and our loved ones'."
He sipped, snorting amusement into his snifter when Draco commented about wedding presents. "Alas, I'll just have to spend next week wondering what it is. A batch of mother-in-law repellent wouldn't go astray." he smirked.