In the main three sentences both 'click' and 'click on' are ok, but why make use of the phrase 'on' when it is not essential? Within the 4th sentence 'click on right here' sounds Odd. Preferable is: "Click right here ..". eager over the footwear, the dimensions from the sneakers https://paxtoncqdnx.oblogation.com/19901862/fascination-about-click