For someone you don't know very well though, invite first to low cost meet ups like a dessert, smoothie, coffee, tea after work and chat to find out if they have an annoying voice or any other red flags like slurping. Then if all seems okay, go for lunch or dinner and pay and start to observe how they behave with others and how others view the person. Just know, the way they treat others when angry is how they will treat you when they are angry at you.