How to give the proper BJ?


I had a convo with my bf a few days ago and we tend to open up bout our past! He said the whore he was dealing with before me has better head than i do but he said I’m not to far behind! How can i improve? She’s was Spanish and he said she knew what to do to the head? 🙄 We has sex yesterday and i kept thinking bout her sucking his d*ck while i was doing it! I asked him later that day and he said keep working😒 GIVE ME HELP