Our half Indian, half British & half Japanese guest teaches some finesse Mahjong moves :D
To skip the bullshit:
5:12 (well, kinda) 置き切り Oki-giri the basic discard
6:40 縦切り(逆回転) Tate-giri (reversed)
10:09 外切り Soto-giri
13:58 Riichi tile discard
For even more finesse, check out this tutorial: