However, as a dedicated devotee of pseudo-dating, I would argue the opposite. A key rule of pseudo-dating is to make as LITTLE eye contact as possible. Eye contact = interest = hope, and hope --> expectations. And remember, expectations are the number one no-no. At said party/bar/gathering/cafe, try to make eye contact with everyone BUT the person you are actually into. Talk to his/her friends and acquaintances, dance nearby, make funny and charming jokes within his/her auditory range, but never come into actual, normal contact with this person. Follow this up by continued avoidance, especially if you see this person on the street the next week or something horrible like that.
This is a key step to drawing out and ensuring your pseudo-dating capabilities. Because, c'mon, who would actually want to date like a normal person?