Often I have observed brothers not looking at the Imam – instead looking at their feet or the wall or something else – during the Friday khutbah. But, one of the things we should do is to look at the Imam during his khutbah.
Abdullah ibn Mas’ood [RA] said:
When the Messenger of Allaah [SAWS] mounted the minbar, we would turn our faces towards him.
[Reported by Tirmidhi]
Also, it’s important to come close to the Imam, instead of hanging out in the corners to rest against the walls.
Abu Sa’eed al-Khudri [RA] said:
The Messenger of Allaah [SAWS] sat on the minbar and we sat around him.
[Reported by al-Bukhaari]
I’ve tried this and alhamdulillah, it really helps increase your concentration during the khutbah.