Credit: Michael Williams/

The same day she announced on Twitter that she has met a new man, Vienna Girardi took the romance public.

The former Hooters waitress, 24, attended Tuesday's French Connection Fall 2010 Collection event at Soho House in L.A. with her latest squeeze, John Sala.

The two got very cozy, a witness tells

At one point, they went to the bar and he grabbed her butt.

Later, the witness adds, "She snapped her fingers and beckoned to her date -- and he came running!"

Her new man is "amazing," Girardi has gushed on Twitter. "I'm so happy!!"

Girardi and former Bachelor Jake Pavelka called off their engagement earlier this summer after six months together.