Most Helpful Girl
Eye contact in general is good. Make eye contact with one person twice, and based on the reaction on their faces, you should get a truthful response. This will sound superficial, but if a girl that isn't your type is staring at you and making it super uncomfortable, are you going to be smiling or giving a disgusted/ weirded out face? Same goes for girls. You look at someone and if they intrigue you, they will want to make eye contact with you. :) hope this helps.