I need help and I don't know what to do

For some context, I (bisexual 17M) joined this rugby club about 6-8 weeks ago, and this guy, let's call him Jack for the sake of this (16M) has been there for me since pretty much day one. We train twice a week every week and have matches on Sundays. The thing is, I'm not openly bi, I'm only sharing this on here bc it's all anonymous, but only a small handful of real life people know, and I like him. I don't know if he's LGBTQ, but my "gaydar" sort of senses it in a way, probably around 50-65%. My evidence for this is that at training, when he's stood still he stands sort of stereotypically LGBT imo, with one leg straight, and a bend at the knee with the other leg, with the leg with the knee bend stood on his toes and that (this is a really bad explanation just pls try to visualise this sorry), with his hands on his hips. To go along side this, he also has very soft facial features, is relatively shy, and probably my biggest piece of evidence is that for my area(South Lancashire/North Greater Manchester), he has a relatively posh, very well spoken accent which is very odd for the area. But well, obviously, we play rugby. That's why I'm skeptical. Also I can't remember if I mentioned this earlier but if I didn't I'm saying it now, I like him. We've gotten to know quite a bit about eachother, but I haven't came out to him. I know how I will come out to him but my main problem is actually asking him if he likes men, but I don't wanna force it. I feel like if I come out first he might feel more comfortable coming out to me but idk. Help (sorry for the paragraph)