A gesture similar to the awkward turtle in that it is a hand gesture that conveys the feelings of the one making it. The lonely lama is done by pointing the index and pinky finger upwards while touching the middle and ring finger to the thumb, in the same way that a shadow puppet dog is made.
It is most often used when one is part of a group, and the group leaves for a period of time. The lonely llama can also be somewhat counterproductive as one displaying the lonely llama by themselves would likely be avoided by others.
Melissa: "I have to go to the bathroom, be back in a minute"
Trevor: "Oh, sorry, I have to take this call. Excuse me.'
Nickie: *lonely llama*