I think the 3 things I always try and do whether matching up or in tournament play are:
1) A handshake before play begins... Kind of bugs me when people don't do this...
2) Some sort of acknowledgement to my opponent when I get obviously lucky... A hand wave or something...
3) A handshake after play is done... I am shocked how many people refuse to shake hands after a match is over...
Interestingly enough, the handshake issue came up in the very first tournament of Bigtruck's I ever played in in Waco where one of the locals refused to shake my hand after I won the match...
I'm ok with the fist bump too, especially during cold season.
I never wish my opponent good luck. I will say, "shoot em good". Either way it's just a courtesy because no one ever really means it.
The finger snapping has been a tradition for quite some time here in Finland and across Europe as well (as far as I know...). It's a nice way to acknowledge a good shot without too much of an interference...
I like this. I know a few here have said this. snap snap snap to you.
Ray