Monday

Couples Watch: Miley & Justin, Julianne Hough & Chuck Wicks

04/06/2009 at 06:00 AM EDT

• Miley Cyrus and boyfriend Justin Gaston, grabbing a back patio seat during their fun dinner with friends at Koi in Los Angeles. The group enjoyed a leisurely two-hour meal, and Cyrus didn't even seem to mind when a couple of fans approached her for a picture.

• Julianne Hough and boyfriend Chuck Wicks, dancing up a storm at Apple Lounge in West Hollywood. The two "were adorable," an onlooker says, adding that Chuck had his arm around her while she was nuzzled into him. The duo shared little kisses on the forehead and giggles the entire night.

• Lovebirds Zac Efron and Vanessa Hudgens returned to the spot of Efron's 21st-birthday celebration – Los Angeles's Pace restaurant – for a dinner date. "They were very quiet," says an onlooker. "Both on their phones texting and emailing." The pair also hit pal Aly Michalka’s 20th birthday party at Beso, where they helped the Disney actress/singer, who is half of the duo Aly & AJ, celebrate with gourmet churros topped with sparklers (in liu of a birthday cake) and took home Venus fly traps as party favors.

• Newly engaged Danny Masterson and Bijou Phillips, grabbing a bite and a drink at the café bar inside the Arclight Hollywood before catching a movie with friends. The couple sat in a booth and was joined by Masterson's younger brother, Christopher, who brought a brunette date of his own. "They just seem really loving, and comfortable with each other," an onlooker said. "As they were joined by more people, they just lounged in the booth, either laughing, or doing a group typing session on their PDAs."

• Brooke Shields, looking casual in jeans and a T-shirt, sharing an equally casual dinner with husband Chris Henchy at Katsuya Brentwood. "They were holding hands a lot during dinner and seemed to be enjoying themselves," a source tells us.

• Rose McGowan and Robert Rodriguez, holding hands while shopping at Arcade by Rochelle Gores on trendy Melrose Avenue in Los Angeles. The couple were "quite affectionate," according to a source, as the actress browsed through the racks.

• By REAGAN ALEXANDER, JENNIFER GARCIA and EUNICE OH

Friday's Caught in the Act >