G.A.S. (Give Anonymous Sentiment) is a lightweight tool to allow ad-hoc groups to quickly gather feedback anonymously either during or after a session. You can create or join a room, and post messages that others in the same room as you can read. This creates a digital space where people can be direct with their thoughts and needs to a group without fear of repercussions. Rooms are deleted after several days so make a copy of any feedback you wish to keep.