Walking the streets will present many opportunities for photography. In general a 35mm size camera is ideal for street photography and a zoom lens of around 17-70mm will prove to be of great value.
Look for simple uncluttered object to photograph with a clear background to make the main subject stand out, like the following image.
A street scene near Brisbane river
Look for subjects where you can get the viewers eye to lead into the image, but try not to get recognisable people in the image.
Street scenes at night can prove to be very attractive, look for contrasting colors and objects that stand out, try to get highly saturated colors.
A street scene at night in Shibuya, Tokyo.