Your journal hasn't imported yet, but I added you. Here's how the coding works to get icons from different journals--substitute < and > for [ and]:
[user name=whomever site=livejournal.com] or [user name=whomever site=archiveofourown.org]
you can do those two, also DW itself (of course) and IJ. I don't know about FB.
You have to check the crossposting settings at the bottom of the page to get it to come out the way you like, but it's not difficult. If you have the same userpics on both DW and LJ, you should be able to pick a userpic for the post you write on DW and have the same pic come up on the crosspost.
![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png){kind=small}
regna
(no subject)
Date: 2011-12-27 04:01 pm (UTC)[user name=whomever site=livejournal.com]
or
[user name=whomever site=archiveofourown.org]
you can do those two, also DW itself (of course) and IJ. I don't know about FB.
You have to check the crossposting settings at the bottom of the page to get it to come out the way you like, but it's not difficult. If you have the same userpics on both DW and LJ, you should be able to pick a userpic for the post you write on DW and have the same pic come up on the crosspost.