Ricky Gervais Things Are Cool Between Me and Mel

Ricky Gervais has a strong hunch he and Mel Gibson are cool after Sunday night's Golden Globes.

Gervais was out and about Monday morning and told a photog .. the "Lethal Weapon" star knew what he was getting into by agreeing to appear on the show. 

Mel did not seem bent out of shape after the ceremony ... he hit the town with his hot, 24-year-old GF.