Lots can be communicated with body language today, so let get moving. Arch an eyebrow to ask someone to explain themselves; bat your eyelashes to turn the current conversation into a more flirtatious one; or shake your finger to castigate someone who's misbehaving. It's fun to be more physical, and it will add a nuance to every conversation. Even in business meetings or other professional environments, say things with as few words as possible.