You’ll be unsurprised to learn that it’s pretty much the same things gay and bisexual people can do.
I find it a little annoying that the government is all “just don’t have sex with that many people, okay?” since there are enough non-sexual ways to contract HIV and rape is common enough that concern trolling over slutty behavior just doesn’t seem that constructive to me. After all, if you have sex with 50,000 people who don’t have HIV, you’re never going to get it from sexual contact. But if you have sex only once with one person who is also a virgin but got it from being stabbed with an infected needle when he reached into a garbage can to rescue a kitten, you are at great risk. Plus, not everyone can control who fucks them or how, sadly.
Anyway, don’t miss Campfield in the comments of Meador’s post passing off twenty-five year old information as definitive. I don’t know about you, but I use 1988 as my guide for everything. That’s why I’m afraid of the Soviet Union and think the Taliban are our friends.