Ask each team member to briefly describe how their right neighbour felt during the iteration. Their neighbour confirms or corrects the guess. Once all participants shared their best guess about how their teammates felt, you get an idea of how connected they are, how communication is flowing in your team and if people are aware of the feelings expressed, in some way, by others.
Recognize the efforts of teammates and self-improve a little Source:
Put up 2 columns on a white board: 'Thank you!' and 'My action'. Ask everybody to write one sticky per column: Something they want to thank another teammate for doing; and something they want to change about their own behavior in the next iteration. It can be something really small. Once everyone is finished, do a round for each person to present their stickies and post them to the board.