Mr. Obama is telling lie - a small lie - but none the less he is still lying. Touching one eye (here the brow at 0:59) during a statement or when answering a factual question is highly indicative of a lie. Though POTUS knows everyone is aware he is joking-lying when he says, " I have to say we actually arranged for that because it made me feel at home", it is still displayed with this nonverbal flag of deception (be wary, for touching both eyes simultaneously has a completely different meaning).
He is using his middle finger in this MAP (manipulator, adaptor, pacifier). Thus he is "flipping off" the heckler/protester at the same time he prepares to tell his joke-lie. This is but one example of a "Partial Emblematic Slip" (Ekman) wherein the Emblem (here "The Bird") is only displayed in an abbreviated fashion and not in its typical conscious display - for this nonverbal subconsciously initiate and displayed (as 99.9+% are).
The President (like all of us) tend to commit these (and similar tells) with our non-dominant hands when the lie is small (here he uses his right, non-dominant hand) and our dominant hands for higher levels of deception.
Here, as part of this "Deception Cluster", the President bites his right lower lip as he prepares to lie at the 1:00 mark.
Prolonged eyelid closure is manifested as the lip bite continues - a subconscious "blocking-out" of the lie (also at 1:00)
Barack Obama juts his tongue out (at 1:01). Just before the lie. In this cluster, his "Tongue Jut" is akin to a child pushing out food he/she doesn't like. For he doesn't really want to lie - no one does - it tastes bad.
All these body language tells are package in a nonverbal sentence which follow in rapid succession. In body language parlance, this is known as a "cluster".
Nonverbal Communication Analysis # 2156: Barack Obama's Body Language at Al Smith Charity Dinner - Comedy, White Lies and Facial Touching MAPs
Nonverbal Communication Analysis # 2152: Second Presidential Debate - 16 October 2012 - Barack Obama's Duping Delight - Benghazi, Libya Attack was an "Act of Terror" - Alpha, Beta, Confidence & Acquiescence ....
Nonverbal Communication Analysis # 2138: President Obama's Anger-Frustration During Debate - An Under-Appreciated Body Language Signal
Nonverbal Communication Analysis # 2150: Body Language Advice for President Obama and Governor Romney in Tonight's Debate
Nonverbal Communication Analysis # 2137: Mitt Romney vs. Barack Obama - First Presidential Debate - Barack's Bad Body Language
Nonverbal Communication Analysis # 1907: Governor Rick Scott tells a Lie
Nonverbal Communication Analysis # 2033: Lie Detection, Sergey Lavrov and Syria