Before I say anything else, don't link your temp, memebro will deface it
Anyways start giving some subtle hints, such as sitting or talking a little bit differently, like crossing one leg tight over the other or using the gay voice. Make these hints more and more noticable, maybe dressing in more colors if that fits your persona or making some references to gay in your talk. Eventually these hints, in theory, would be so noticable that it would be impossible for them not to notice, and at that point you could just tell them outright