Photos posted by you and people you're following appear in your feed. To get to your photos feed, click in the upper-left corner of the page. Double click a photo to like it! You can also go directly to a profile by visiting instagram.com/[username].
Click your username in the upper-right corner and select Edit Profile to edit your public bio (your name, username, biography, and website). You'll need to go to the Instagram app on your mobile device to edit your profile picture.
Some profile information is not visible to anyone but you. This includes your email address, phone number, sex, and birthday.