London was a practical lesson on the freedom of expression. It appeared to me that people weren't exactly reticent in expressing their views at all.
Just next to the Westminster Abbey, supporters of the suppressed Tamils in Sri Lanka make almost daily protests, chanting for hours on end and waving banners urging the West to intervene.
The supporters of Palestine are not to be outdone by the Tamils. They're making their presence felt at Whitehall, just outside Downing Street.
And believe it or not, there were no riot squads brandishing tear gas cannisters or waiting to spray chemical-laced water on protestors.
But if you had nothing to protest about but plenty to say, you could always find yourself at Speaker's Corner in Hyde Park.
You could choose to listen to the hellfire and brimstone preachers and argue with them..
... or you could just get yourself a free hug.