Summarize this article in one sentence.
Go to https://www.instagram.com/ in your web browser. This will open your Instagram feed if you're logged into your Instagram account. If you aren't logged into Instagram, click the Log in link in the lower-right side of the page, then enter your Instagram username (or phone number/email address) and password. Scroll through your feed to view posts from people you follow. You can also search for individual users or tags by typing into the "Search" text box at the top of the page. You can do so by double-clicking a post, or you can click ♡ below a post. Click the "Add a comment..." text box below a post's comments (or click the speech bubble icon directly under a post), then type in your comment and press ↵ Enter. Click the "Activity" ♡ icon in the upper-right side of the page to see recent likes, comments, and follows from other people. Click your profile icon {"smallUrl":"https:\/\/www.wikihow.com\/images\/4\/44\/AndroidIGprofile.png","bigUrl":"\/images\/thumb\/4\/44\/AndroidIGprofile.png\/36px-AndroidIGprofile.png","smallWidth":460,"smallHeight":383,"bigWidth":"36","bigHeight":"30","licensing":"<div class=\"mw-parser-output\"><p>I edited this screenshot of an Android icon.\n<\/p><p>License: <a rel=\"nofollow\" class=\"external text\" href=\"http:\/\/en.wikipedia.org\/wiki\/Fair_use\">Fair Use<\/a><br>\n<\/p><\/div>"} in the top-right corner of the page. This will open your profile page, which allows you to view your uploaded photos and videos.  You cannot upload photos or videos on the Instagram website. You can edit your profile's information by clicking Edit Profile at the top of the page, or you can click the gear-shaped icon here to change your password, edit notifications settings, or log out. Click the blue Follow button at the top of a person's profile page in order to follow them, or click the grey Following button at the top of a followed account's page to unfollow the account. You can also block and unblock people on Instagram's website.

Summary:
Open Instagram. Review your feed. Like a post. Add a comment to a post. View your activity. View your profile. Follow or unfollow people.