Don’t sit cross legged here, start your work quickly.
When barbarians sit they only sit cross legged. Sitting on your feet hurts and they don't care how they look, so they're going to be comfortable and cross their legs.
The reading for this word is an exception. Here's a mnemonic to help you remember it:
If you're sitting cross legged lots of people will think you're a grouch (あぐら). Back in the day sitting like this was thought to be really manly, and if you were a woman who did it they'd call you a grouch too.