TOGETHERNESS.

IF YOU'RE ALONE AND LIFE IS making you lonely, you can always go downtown-or, alternatively, join the crowds visiting "Wechselstrom (Alternating current)" at the Sammlung Hauser und Wirth, St. Gallen, between May 13 and October 14, for a show exploring relationships between our inner lives and the social realm: the pleasures and pressures of conviviality, and the highs and lows of solitude. On the guest list: Eija-Liisa Ahtila, Rodney Graham, Pipilotti Rist, Dieter Roth, and a throng of others. Or forget all your cares and drop by the Kiasma, Helsinki, Project Room from May 23 to August 26, where board-game deviser and anatomist of social role-playing Eva Grubinger will stage a new multimedia installation, Operation R.O.S.A., 2001, the video component of which features a voiceover by Nina Hagen. Here, yesterday's New Wave heroine plays today's victim of Skinnerian social engineering. At the Palazzo delle Papesse, Siena, from June 2 to September 15, "The Gift: Generous Offerings, Threatening Hospitality" focuses on that ultimate social mine field, gift-giving, and its role in artists' practices. Is it really better to give than receive? Offerings from Rirkrit Tiravanija, Man Ray, Carsten Holler, Louise Bourgeois, Marie-Ange Guilleminot, Ana Mendieta, and many others will probe the question. This spring and summer, the gangs will be out in force at the Galleria Comunale d'Arte Moderna e Contemporanea, Rome. Achille Bonito Oliva's bipartite exhibition "Artistic Tribes" (part one: Apr. 25-June 24; part two: July 7-Oct. 7) will line up surveys of the major-league postwar avant-gardes and let them slug it out. The show will look at Lettrism, Situationism, Happenings, Fluxus and Events, the Gutai, Mono-Ha, and the Factory, plus two more nebulous formulations: "techno tribes" and "tribal chiefs without tribes." But there'll be no factional friction at the Fundacio Joan Miro, Barcelona: It's come one, come all to "Something for Everyone," the year-long exhibition cycle celebrating the foundation's twenty-fifth anniversary. Festivities will be brought to a close between June 14 and July 29 with shows of work by weaver of stories Claude Leveque and alchemist of the everyday Michel Francois.