You may expect me to make a masturbation joke here, but I'm not, so there. But if you've imagined it, my work is done.
At my school, it was claimed as playground lore that if – as a boy – you wore a watch on your left wrist, you were gay. That said, I suspect on any late 80s school playground, any perceptibly errant behaviour was labelled as gay. I had 'gay handwriting*' (these day's its 'girl's handwriting', we're a lot more inclusive). We didn't have actual lesbians though, they just lived on VHS, so I'm not sure about if the watch phenomenon says anything about their sexuality. Well, they were never wearing a watch in the videos.
*because I flamboyantly print each letter. In infant school I was punished for refusing to join up my letters by having to write I must join up my letters one hundred times which I did, carefully printing each line. A formative case of teacher exasperation that continued through my educational career. My mum claims I used to a be a sinister who changed teams but I've no recollection of this fact, so I'm not convinced.