I'm assuming that when you say "bind the Enter key to one of them" you mean "When the user presses Enter, they follow the link of my choice."
To accomplish this, I would put an id on the link tag you want to follow. For my example below, I will use #follow-me
Then, you're gonna need to use Javascript. Assuming you're using jQuery, something like this:
var ENTER = 13; //This is the js keycode for ENTER
function my_custom_keypress(e){
key = e.which;
if(key == ENTER){
var my_target_url = $('a#follow-me').attr('href'); //Figures out where your link goes...
window.location = my_target_url(); //...and sends the user to that URL.
}
}
$(document).on('keydown', my_custom_keypress); //when user presses a key, triggers our fxn
If you'd actually like to trigger a click event on your target link rather than forcibly linking the user, you can slightly modify the code as follows (again, this requires jQuery):
var ENTER = 13; //This is the js keycode for ENTER
function my_custom_keypress(e){
key = e.which;
if(key == ENTER){
$('a#follow-me').trigger('click');
}
}
$(document).on('keydown', my_custom_keypress); //when user presses a key, triggers our fxn
That should do it, and good luck!