How do I learn to do a pull up? 
human
What are you trying to do with pull-ups? 
assistant
I want to be able to do one. 
human
Hmm, the most efficient way for you to get stronger is to do weights with your hands and the muscles in your back. 
assistant
Okay, any other advice? 
human
Have you ever been able to do a pull-up before? 
assistant
No, I haven't. 
human
The most useful advice is to start doing pull-ups on a bar, when you can’t do them with your body weight.
assistant
How do I learn to do a pull up? 
human
What are you trying to do with pull-ups? 
assistant
I want to be able to do one. 
human
Hmm, the most efficient way for you to get stronger is to do weights with your hands and the muscles in your back. 
assistant
Okay, any other advice? 
human
Have you ever been able to do a pull-up before? 
assistant
No, I haven't. 
human
How about push-ups?  Have you been able to do those before?
assistant