On the left is Le Depart du Marin Pecheur Fecamp, taken in 1949 by Willy Ronis; on the right, an untitled 1946 photograph by Dimitri Kessel. Both are part of You Must Remember This, a Kiss Is Just a Kiss, an exhibit of kiss photos from 30 photographers around the world. It opens Saturday and runs through February 11 at the Mein Gallery, 356 W. Huron. All work is for sale, and an exhibition poster (of a photograph by Beat Paul) sells for $12; some proceeds will benefit the AIDS Foundation of Chicago. Gallery hours are 10 to 5:30 Tuesday through Friday and 11 to 5:30 Saturday. Admission is free; for details, call 787-0400.