find a hobby

I realize I have a good skill-base upon which I could build some hobbies, but I don’t know what I want to do. I just started a new job - my first real job after college - about 5 weeks ago. Thus, my life’s in a real state of flux—not quite settled yet. But it’s become apparent that I really don’t have much time during the week for hobbies since I get home from work late and go to bed early so I can go to work the next day, early in the morning. I’m looking for a weekend hobby that I can do alone OR with others, but not obligately both. My brother is in the volunteer fire department, which occupies most of his weekends. I see that it’s something he really enjoys. But I’m not sure I’d like to commit to a hobby like that. I’m afraid of it gobbling up my entire weekend. But then, I reason, that hobby’s not for me. HELP!