Hello ______ (your friend`s name), Hope you are doing well today. I just would like to let you know of my favourite game "Mahjong Trail" on Facebook. It is all about selecting 2 similar tiles and finishing all of the given tiles from a pattern that you will have to pass through to be able to make it to the next level. You have to try it, it is really entertaining and aside from that, it exersicing your brains at the same time. I hope you are able to try it and let me know how much you like it. Take care! Your friend, Your name.