How to join a league?

Hi, I m new here though a veteran at SWOS of course. I m interested in taking part in the leagues which seem to go on around here but haven t been able to find how to apply for any. I used to be very good at it and fancy myself to give many people a good game with practice but have only been able to have a few games with two other people so far. Can anyone tell me what I need to do for this, or even just to be able to have plenty friendly games with anyone willing? Thanks.

From UK (love the banner btw XD)

Thanks, I ll give those a try

Thanks for that, Playaveli