I am having difficulty accepting friend requests... Can someone offer some guidance please.

When you have a new friend request you will see the Red Activity Bubble (in the upper right) stating you have "xx new updates".

Click that and it will show what the updates are (i.e. Friend Request, Message, etc).

Click on Friend Requests and it will show all pending friend requests.

At the far right you will see the option to Accept or Reject the request.

A popup will appear where you can add info to the friend like how you know them and a note (this is optional info and only visible by you when you view your friends detail).

Then click the Add Friend button.

I did that, I actually had to go to that person's profile and click the + then the pop up window showed up. I got it figured out for now. Hell, it may just be user error!