Board Game Arena

Hello,
I read that each time I thank a player for playing the first game with me - he can get 3 gift points.
Can someone please explain how do I thank a player, so he can get the points?

Thanks.

That's only possible for your very first game on bga, so I'm afraid you can't do that anymore

Thank you!

Maybe so, but How do you Thank a player?

And, is that for your first game of any game, or first play of each game?

I usually send them money.