This study examined how interpersonal attraction was described in Craigslist.org's Missed Connections postings via a quantitative content analysis of randomly selected posts in the United States. Results indicated that, as predicted, Missed Connections postings contained a combination of multiple verbal (e.g., spoken interactions that are not greetings or praise/compliments) and nonverbal (e.g., physical attractiveness, eye contact, nonverbal body movements) attraction expressions; these posts included an average of just over two attraction expressions. Physical attractiveness was the most frequently expressed form of interpersonal attraction. There were no biological sex or sexual orientation differences in relation to which and how many attraction expressions were included in Missed Connections posts. Implications for attraction and online personal advertisement research are described. (C) 2015 Elsevier Ltd. All rights reserved.