注 pour / be careful

You don't CHEW drinks, you pour 'em.

Pour some water drinks for your master, o knave!

be careful! ★★★★☆
注 (pour / be careful) + 意 (meaning) = 注意 (be careful!)

be careful! caution! (when used as a 'suru' verb, it means, 'to warn')

order ★★★☆☆
注 (pour / be careful) + 文 (culture/ sentence) = 注文 (order)

to order an item - both in a store and by mail. Also, if you ask your friend to do an annoying and detailed favor, like, "Could you do the laundry again with this other kind of soap!", that's chuumon.