The 31-year-old psychologist described himself as tall, dark and bearded, with a "black belt" in Trivial Pursuit. "Reaganites need not apply," he wrote.

A divorced woman described herself as small, witty and down to earth. "Into Southwest, '60s and '70s, music, bluegrass, the country, people, social service, wearing jeans, laughing," she wrote.

The descriptions were posted on a matchmaker bulletin board at yesterday's Singles Expo sponsored by the Jewish Community Center of Greater Washington in Rockville.

More than 600 people attended the event, which began with a catered bagel brunch and ended with a dance to the live music of the Highway Stars. The expo also offered a wide range of workshops: How to Travel Jewishly, Singleness and Jewish Attitudes Towards Sexuality, Ask the Psychologist, Dressing for Success.

"I figured that since I'm relatively new to the area -- I've only been here 1 1/2 years -- this is one way of meeting people," said Ralph, a 25-year-old lawyer from Silver Spring. "It's sort of a shopping expedition if you want to call it that."

By midafternoon, he had attended the sexuality workshop and was taking a refreshment break. He said he was not staying for dinner or for the dance. "I think 18 bucks for blintzes is a little much."

But he had met some nice women and hoped to meet more through the bulletin board personal ads.

Also there was Sapirit Argaman, a 34-year-old genetic engineer who moved to the Washington area a week ago from Israel. She had already attended one workshop -- How to Listen to the One You Love and Others. "I came because I was curious, I guess, about how things are in the States," she said.

"It's the curiosity," said a 48-year-old psychologist from the District who had just broken off a relationship and who, like others, did not want his love search made public.

This year's expo attracted people from as far away as Pennsylvania, said Melissa Krasner, a spokeswoman for the community center.

In addition to those who attended the workshops, an estimated 150 had signed up for the fettucine and sole dinner at the Bethesda Marriott, and another 600 would be at the dance, she said.

"There are people who don't want to go to singles bars and dances, and who want something where they can meet people in a nonthreatening environment, where they don't feel like they're on exhibit," said Steve Hausman, the event chairman.

Therefore, the bulletin board -- a Hausman invention:

"Not a jock," read one ad. "Nor, into smoking or drugs. Looking for a SJF, 25-30ish, intelligent, similar interests, reasonably normal mental state. Not expecting perfection."