Yup, me. Now only with friends from time to time. But I started long time ago (17-18 years ago) in my primary school where my director was a big fan of that sport:)
I have only one advice for you...have fun of playing:). Everything else like skills, technics etc you will gain during the playing:).
I play it from my students years. Above average, dare to say.:)Now on weekends i often go to nearest tennis club to play with my son - he has better reaction but lesser experience yet...
Tips for beginners - just play. No trick, no "supershots", just return ball to partner as many as you can. Tricks will come later.
Loving it. I've been playing table tenis for only like 3-4 years (I dun remember actually) and I have actually no idea whether I am good compared to players who are in a club, since I have never found the time/occasion/desire to join one. I've been playing regularly for the past years, right now my activity has slightly dropped and I now merely play on weekends at a friend's for about ~2 hours. I can concur with what lucas said. Techniques and sophistication you will gain by simply playing it regularly. Additionally, the racket you're using does make a difference, try out offensive and defensive coverings and stuff.