How to style: leather leggings

Leather has always been a big trend. But lately I've seen a lot of people wearing leather clothes like  shorts, tops, jeans... My favourite leather ítem after the typical leather jacket are leather leggings. I think they are so cool and they are also so easy to style. Here are my three favourite leather leggings (I'm saying "leather" so many times ? I'm so sorry oops!) :

And here are some ideas to style them :)