This is the default styling; I'm just throwing the CSS up for the contextual pop-up (when you hover a user on your journal) so that you can style it if you'd like!

.ContextualPopup{
width:20em;
text-align:left;
overflow:auto;
}

.ContextualPopup .Userpic{
border-style:solid;
border-width:1px;
float:right;
margin-left:2px;
padding:2px;
}

/* Don't add extra height at bottom of userpic box */
.ContextualPopup .Userpic a{
display:block;
line-height:0;
}

.ContextualPopup .Userpic img{
height:auto;
width:auto;
max-height:75px;
max-width:75px;
width:expression(this.width > 75 ? "75px" :this.width); /*IE Max-width */
border:0;
}

.ContextualPopup a{
text-decoration:none;
border-bottom:none;
}

.ContextualPopup .Relation{
font-weight:bold;
font-size:0.8em;
line-height:1.2;
margin-bottom:1em;
}

.ContextualPopup .Actions{
line-height:1.4;
}

.ContextualPopup .Actions ul{
list-style:none;
margin:0;
padding-left:.5em;
}