1st choice: spontaneously combust myself with a molotov cocktail.
2nd choice: if i lack molotovs i'll empty my magazine into the nearest dead enemy.
3rd: if i've won a last man standing or something then i'll do a quick gesture thing and meditate on the pretty scenery and sky and it's lack of birds.
NO teabagging, I just don't like to do that, yes and find it pointless.
Spam all my explosives into the air or far far away, fireworks and I don't need them anymore, YEAHH!
Empty my clip if I happen to have no explosives or not equipped (for fun).