I would mostly keep a low profile and use it to travel around the world and all over time. It would be like having a vacation whenever I want.
I would also use it to enhance myself by removing some of my health problems, enhancing strength, dexterity, endurance and intelligence as well as make myself omni-lingual for ease of going from one country to another without much hassles.
I would also use it to do good deeds and perform miracles like healing people from physical and mental sickness and restoring unused deserts into fertile forests but if I start getting too much notice, I would just stop and let the news die out before resuming. Alternatively I could just give myself another form and have a secret identity like a super hero. Having fame is fine and dandy but I would get a whole bunch of paparazzi, crowds of people demanding me to solve their problems and the government using my gauntlet as a weapon.