Make pairs. 1 student is the interviewer, other student is the interviewee. Give them 5 minutes to talk and interviewer should learn as much information as possible about the interviewee. After 5 min, all the interviewers go out of class and the interviewees are supposed to fill this questionnaire. Collect the papers. Then, call all the interviewers back in the class and one by one ask the interviewers questions about their partners in front of the class. The interviewer who answers all correct Q's about his/her partner is the winning pair. Students love this game. I play it every Valentine's Day and even otherwise.