In the 1st 3 sentences both equally 'click' and 'click on' are Okay, but why utilize the phrase 'on' when it is not required? From the 4th sentence 'click on in this article' sounds Weird. Preferable is: "Click listed here ..". eager around the shoes, the scale of your sneakers https://fernandorepzk.blogunteer.com/19906927/considerations-to-know-about-click