When working with your contacts, you have some options you need to be aware of. You can get options in two ways: through the dropdown and by hovering over the person's picture icon.
Working with contacts
Options by hovering
When you hover over the person's picture icon, you get options for instant messaging and audio or video calling that person:
You can see their contact card and get to more options like those on the more options dropdown (see the Options by dropdown section that follows).
Options by dropdown
When you right-click on one of the contacts in...