Question: how are you other ways to ask?
Answer:  What's up? Yes, thanks. I'm up. Not much.,  How's it going? I'm going. It went. Not bad.,  What's going on? Yes, it's on. I'm on. ... ,  How have you been? I've been, thanks. Usually. ... ,  What have you been up to? The top. The usual. ... ,  Are you well? I'm very well, thanks. I'm a well, thanks. ... ,  How are you keeping?