Hey Martin! I think it does depend on your strengths and what shots you prefer to play and of course depends on each different opponent. But I’m a right hander and I know when I play left handers I really don’t like it when they serve short into my forehand and attack the first ball with their forehand. This attack you should try to mix up the position, sinto the body is great but also sometimes wide into each side, keep them guessing. Also as a left hander you have a great angle out to the wide forehand of right handers with your backhand you can try to use, if you look at someone like Timo Boll he does this so well. It’s a great way to learn as well watching on YouTube other left handers and what they are doing as well. Hope this helps! Dan 🙂