Well, the only advise and the most important advise is
"TO BE GENUINELY INTERESTED IN PEOPLE"
It's kinda like a hobby. If you're interested in basketball, then you will be good at it. If you're interested in playing piano, then you'll be good at it. If you're interested in people, then might as well you'll be good at conversing with people then.
I also recommend reading
How to Win Friends and Influence People by Dale Carnegie as
90802 above had recommended. I got all-of-the-above advise from this book. I have read that too and it really helped me on my social life. Like from no-social life to having been able to converse much easier. If you want a soft copy of it, you could drop me a message.
