How dangerous is it to be visiting a person that is HIV positive?

It is not dangerous at all. Please visit your HIV positive friends
In laymens terms. HIV is transmitted by body fluids. That is the fluid from the infected person has to get to the fluid of the uninfected person. Think about that. Saliva itself has a very low viral count. But if the infected person coughed on you the virus would still have to get to your body fluids.
Talking to, spending time in a room with, shaking hands, hugging are all safe.

Not at all dangerous. HIV is not contagious through air, or through normal contact. You can't catch HIV by being in the same room as a person, or by giving them a hug or holding their hand. What you don't want to do is have unprotected sex with that person, share needles with them (I hope you're not a drug user anyway), or put yourself in a situation where you might exchange fluids - if they get a cut or something, let them or a health professional take care of it.

But if you're just hanging out, watching TV, grabbing dinner, whatever - that's totally safe. You can't catch HIV from those kinds of activities.

Households
Although HIV has been transmitted between family members in a household setting, this type of transmission is very rare. These transmissions are believed to have resulted from contact between skin or mucous membranes and infected blood. To prevent even such rare occurrences, precautions, as described in previously published guidelines, should be taken in all settings "including the home" to prevent exposures to the blood of persons who are HIV infected, at risk for HIV infection, or whose infection and risk status are unknown. For example,

Gloves should be worn during contact with blood or other body fluids that could possibly contain visible blood, such as urine, feces, or vomit.
Cuts, sores, or breaks on both the care giver鈥檚 and patient鈥檚 exposed skin should be covered with bandages.
Hands and other parts of the body should be washed immediately after contact with blood or other body fluids, and surfaces soiled with blood should be disinfected appropriately.
Practices that increase the likelihood of blood contact, such as sharing of razors and toothbrushes, should be avoided.
Needles and other sharp instruments should be used only when medically necessary and handled according to recommendations for health-care settings. (Do not put caps back on needles by hand or remove needles from syringes. Dispose of needles in puncture-proof containers out of the reach of children and visitors.)

It is not dangerous at all.

Unless you plan on engaging in risky behavior with this person, there is absolutely, positively NO risk to you.

HIV is NOT transmitted through casual contact.

EMT

as long as you dont have unprotected sex with them u should be fine.

please read up on HIV and how its transmitted on medicinenet.com:

http://www.medicinenet.com/human_immunod...

unless you plan on stabbing them and splashing their blood in your eye, or having unprotected sex then it doesn't matter. you are totally safe!