Hermione was aware that he was watching her, but pretended not to notice as she took a bite of her sandwich. It had a bit too much mustard on it for her liking, but it wasn't enough to make her take it back or forget eating it all together; she wasn't going to make a fuss over it. Usually, she would reach into her desk for whatever she had in there to nibble on for lunch and either grab some carry away or make something for dinner. Lunch just wasn't on her list of priorities during the days, especially on Mondays when she was most busy.
Looking up when Ron suggested they should all come by his place, she raised her eyebrows and pursed her lips when she noticed the smirk across his face. She could read what he was thinking and did kick him in the shin.
"I'm sure we could even invite our significant others as well so they wouldn't get the wrong impression," she said, her voice tense.