When playing badminton without line judges, players often use arm gestures to signal a line call to the opponent. I've seen different versions of these signals.

For example, you can do the line-judge signal of "out", by spreading both arms. I've also seen players point their arm or racket straight up in the air, or point away from the court to indicate "out".

My question is, what are the standard arm gestures of players to indicate "in" or "out" line calls?

when its out, i usually just put my arm up in the air kind of like a wave, or put my racket up. when its in i'm usually dissapointed and yell kind of a dissapproving "yeah".

I use a mixture of all gestures you've described.

But most of the time I point rackethead away from court (straight out at shoulder height) to signal out and rackethead down (inside court or to line) when it's in.

/mats

if its out...like most people..i would raise my hand..but ifs its in..i would usually give them a thumbs up...

I usually reply with my hand arm pointing upwards when its out and usually say "good shot" when its in since if I think it's out and it ends up in, it is always very close to the line.

well for myself, if my opponents don't hear me saying "Shiit.. Shiit .. .. shiit...shiit"
then its out

My question is, what are the standard arm gestures of players to indicate "in" or "out" line calls?

"In" is always a flat hand gesture parallel to the floor. "Out", I've seen anything and everything that's not the "In" gesture. :)

The best "Out" signal/call I've seen is, the opponent calls "Out" early and raises his hand but the shuttle somehow lands right on the outside portion of the line. He pauses, looks at the shuttle, shakes his head and stomps on the shuttle, kicks it away, gets a new shuttle and says, "Sorry, that was in." :p

i tend to kick the shuttle off the court and still call it out

The high school wide signal for out is pointing your index finger up in the air, and out is spreading your non racket hand and holding it up. Easy to do lol