How Facebook Suggests Friends
Step 1. Visit to Facebook and see your friend's timeline. Click the down-facing arrowhead with a cog icon close to the "Message" button.
Step 2. Choose "Suggest Friends" from the drop-down checklist. Scroll with your friends to locate the one you want to suggest, or go into the name into the Search bar. Click the name to highlight it for sharing. You could select multiple friends at once to advise greater than one.
Action 3. Click "Send Suggestions" to send out the pal pointer. Both friends get the recommendation under their friend Requests tab, which also tells them you made the idea.