*tagname Blah-blah-blah — Post a message with tag 'tagname'
#1234 Blah-blah-blah — Answer to message #1234
#1234/5 Blah — Answer to reply #1234/5
! #1234 — Recommend post
# — Show last messages from your feed (## — second page, ...)
#+ — Show last messages from public timeline
@ — Show recomendations and popular personal blogs
* — Show your tags
#1234 — Show message
#1234+ — Show message with replies
@username — Show user's info
@username+ — Show user's info and last 10 messages
@username *tag — User's messages with this tag
*tag — Show last 10 messages with this tag
? blah — Search posts for 'blah'
? @username blah — Searching among user's posts for 'blah'
D #123 — Delete message
D L — Delete last message
S — Show your subscriptions
S #123 — Subscribe to message replies
S @username — Subscribe to user's blog
U #123 — Unsubscribe from comments
U @username — Unsubscribe from user's blog
BL — Show your blacklist
BL @username — Add/delete user to/from your blacklist
BL *tag — Add/delete tag to/from your blacklist
WL — Show your "white list"
WL @username — Add/delete user to/from your "white list"
PM @username text — Send personal message
ON / OFF — Enable/disable subscriptions delivery
VCARD — Update "About" info from Jabber vCard
PING — Pong :)
Read more: juick.com