The State of Massachusetts currently does not offer any marijuana consumption cafes, bars or mixed-use establishments yet. You can only consume on private residence. Private residences are the only defined area in Massachusetts where you can consume cannabis. You can not use marijuana in any form (smoking, vaping, edibles, etc.) in public or on federal land. Employers, landlords, cities, and towns may have their own policies about the use of marijuana. Check with them to see what is allowed.