Instagram share button and pinterest

Hello,

I am using this plugin for share my post on socail networks. I need to use
facebook,google+,linkedin,pinterest,twiiter and instagram. But in this plugin instagram is not present currently.

So my first question is that any way to implement instagram sharing on my wordpress posts.

Second question is on twitter sharing when we click on it a share window is open and share post title not post content like facebook share and google+. So please tell me how can share post content on my twitter wall.

Third question is that what is the process to share my post on pinterest. Please describe. Your help is much appreciated.

Here is the URL:-https://dummy.toggletechnology.co.in/wordpress/

https://www.ads-software.com/plugins/social-sharing-toolkit/