first feeding day ever

You can drop the second one in right after he gets the first down. Make sure you blowdry the face right before.

You can do that, but with mine the feeding response isn't as strong if it's presented an hour later, and they're trying to hunker down to start digesting so it may spook them out. Give him one mouse, wait till it's down all the way, wait a minute or two just to make sure and then present the other. If he's hungry he'll take it, if not he won't. A lot of ball pythons are good like that, though some will eat till their eyes bulge. :P

If he doesn't take the second one but seems really interested you can try just leaving the mouse in there with him. Sometimes they'll wait a while and then go back for more.

Really, the feeding technique you use is up to you. I just don't recommmend feeding him any less than 5-7 days apart, because food presented too often can scare him and trying to feed a snake that's stressed because of food is a real pain in the fanny.

Good luck! Glad he ate for you! :)