Expert Q & A Answers About HIV on utensils

Can I get HIV from sharing food or utensils?

My friend and I were eating Japanese food and she took the chopsticks out of her mouth and stuck them in my hot noodle soup. I know for a fact that she has had multiple partners and hasn’t been tested for AIDS. I also have a small blister in my mouth that I’m worried makes me more susceptible to STDs. Should I be concerned?