This query is a bit off-topic, but what's the opinion on 2 F passengers having a drink or dinner together using a buddy seat? Just seen the buddy seat mentioned in earlier comments.
Obviously no intention of being loud and/or obnoxious but also wouldn't be whispering. Our seats are 1A and 2A on a 777 on the 297 departing 3.45pm so shouldn't be disrupting sleep initially.
Novice F here and don't want to end up meeting a DYKWIA Gold.