When visiting another LinkedIn user's profile, you'll notice a blue 'Connect'
button at the top of the page, along with their name and other information.
Some LinkedIn users have made this button a menu item on their profiles. To find a means to connect, click 'More'
If you're using a desktop web browser, you can add a personal remark to your invitation by clicking 'Connect' on someone's profile. When you use the mobile app, tapping 'Connect' will always send a default invitation.