'pottering around'
IMAGINE, You and your girlfriend, Hermione Granger were wondering around the Gryffindor common rooms late at night. Was their a purpose to this? - well, no, but that doesn't matter.
"Hermione, you are honestly the most wonderful person I've ever met." You gush, causing Hermione to blush a deep taffy.
"You obviously haven't been introduced to yourself, my love," Hermione giggled, "Y/N, meet Y/N."