Knowledge: Ikea offers table leg replacement for free. On the other hand, to train the lower body, it is best to use a leg press machine.

Conversation:
I love to exercise. I feel so sluggish on days when I don't work out at the gym.
Interesting, are you working on physical fitness for sport, or your occupation or some daily activity?
Just to be fit, it actually feels great to work out and have a purpose doing something. I may add strength training too; however, I'm not certain yet what it'll build on me.
Since strength training would induce muscle contractions, it'll build anaerobic endurance, strength as well as skeletal muscle size.
That's great, what tools are needed for it?
Tools like dumbbells or weighted bars that oppose the force the muscles generate with concentric or eccentric contraction.
Cool, what about the legs?

Response: To train the legs, use a leg press machine.