Here’s the thing. If someone has a sexually transmitted disease you could totally tell because there’s
always a giveaway. Little bumps or blisters or itching. Like if someone scratches themselves a lot. That’s a sign. You just have to pay close enough
attention…I think. Unfortunately you can’t really judge a
book by its cover. A lot of STI’s are completely invisible you won’t be able to tell. The only way
to be sure is to get tested.