What Hover selectors can I use?

Q. What hover selectors can I use?
A. It depends on where you want the hover message. Here are some examples.

Context	Selector
Sociable links	div.sociable
Jetpack sharing	div.sharedaddy
Salient theme	ul#social li
[bw_follow_me] links	img.bw_follow
[bw_follow_me] links with theme=gener	span.bw_follow_me

Separate multiple values with commas. e.g. div.sociable,div.sharedaddy