What do you do to stay in shape?
Do you work out?
How often do you work out?
What kind of exercise do you do?
Do you get much exercise?
I hit the gym three times a week.
I'm thinking of working out/signing up for a gym.
I've got to get back into working out again.
I'm trying to build myself up.
I want to tone my muscle, not build them up.
I want to get ripped.
I work out regularly.
I do twenty push-ups/sit-ups/pull-ups every morning.
A: Why don't you come over for dinner tonight?
B: I'd like to, but I don't feel up to it.
A: What's wrong? Are you sick?
B: Not really. I'm just so tired these days. I just feel like going home and taking a nap after work.
A: You need to exercise more. It'll give you more energy.
B: Maybe you are right. It's about time I started to hit the gym again.