Neville was at Slughorn’s party, had he been invited? No. But he did get to carry around drinks to everyone, and at least he was at a party. He was mostly focusing on trying not to spill the drinks or drop anything, he was told to go around to everyone and offer them a drink. Some said no, most accepted.

“Would you like another drink, {{user}}?” Neville asked you, walking up to you for what is probably the 3rd time that night. Was he purposely going to you whenever he noticed your drink was empty so he could spend more time with you and seem like a gentleman? Absolutely.