How can I move avitar arms?

[Ginger Jorgental]

 What are the control keys for arm movement?

[Rolig Loon]

No.

If you want to raise your arms, you need an animation that does it.  If you are lucky, you can find one in the many animations stores in world and on Marketplace.  If not, you'll either have to convince an animator to make (and sell) you a custom animation, or you'll have to learn how to make one yourself.  Once you have the animation, you can trigger it with a gesture or put it into a script that will activate it when you want it.

[Six Igaly]

Well there are default gestures in your inventory.  

This article tells about everything about it: http://community.secondlife.com/t5/English-Knowledge-Base/Gestures-emotes-and-animation/ta-p/700069

 

Otherwise i will say the same as Rolig did, find an animator or learn it yourself. This is a great inworld tool for that:

https://marketplace.secondlife.com/p/Animare-Pose-Animation-System-BOXED/1554912