Giving to monks on alms round is a great experience. In a big place like Bangkok there will be lots of lay people out on the street, so you can soon figure out what the procedure is. And in a busy place like Bangkok, there will often be a lay helper who extracts the alms out of the bowl so that the monk can do a reasonable circuit, otherwise he might fill up his bowl in two minutes.... I've been out on alms round like the guy mentioned in this blog: http://bangkokgirllife.blogspot.co.nz/2 ... steps.html
but I was with one monk and came back with three bags of food (which was then taken to the kitchen in the Wat for distribution).