The 49-year-old actress, who is usually a prolific user of the social networking site, posted her first message since separating from her husband and urged her fans to be more appreciative of people, the femalefirst.co.uk. reported.\"Why do we have only 1 day for giving thanks? Is that why so many people feel unappreciated? Make this 1 of 365 days of Thanksgiving!,\" she posted on Thanksgiving day.