Chess is an ancient game of wisdom and decorum of mutual respect and intense competition so it can be hard to judge acceptable behaviour when it comes to releasing the passion and emotion in celebrating my hard fought victories.
I have a gradated scale of chess-related celebrations for my key moments over the board which I use as a guide:
1 Capture a pawn – seated fist-clench (right fist) with a “Yesss!” hissed discreetly under the breath. No eye contact.
2 Capture of minor piece – standing fist pump (right fist) with a loud “C’MON!” Keeping eye contact.
3 Capture of Rook or Queen – Standing double fist pump one foot on the table (not the board – this is Chess not football) full eye contact from a range of less than one foot high volume: “WHO’S THE DADDY? WHO’S THE DADDY WHO’S THE DADDY?”
4 Checkmate – Standing on the table (not the board) full hip gyration both hands raised to the heavens full volume full eye contact “I AM GOD! I AM THE CHESS GOD!” Back-flip dismount to touching foreheads eyes almost in contact still full volume “PRAY TO YOUR MASTER! PRAY TO THE BEAST! YOU ARE THE LOOOOOOOSERRRRRRR!!!”
OTB i work on my trash talking skills, but that's because I'm playing peers who have little to no idea how the pieces move, whereas I can make the horsies go enough to get a royal fork and then proceed to tell them exactly how bad they are and on what square I'm going to mate them.
Also, I'm a big fan of flinging the pieces about in a variation on 52-card pickup.