Tapping the center of one's forehead means "stom" "stupid."
Tapping one's temple means "slim" "smart."
Swiveling one's hand upright beside the face, palm toward one's cheek, means lekker "delicious."
A sharp upnod of the head means "what's up?" It's mildly rude. It's not aggressive, naturally but it is moderately confrontational.
Passing the hand across from a side of the forehead and meanwhile drawing the fingers from open to closed-tipped out beside one's head means "whew" like "that's a lot."
Kisses Between a man and a woman, or between two women, it is common amongst the well-aquainted to give three mild kisses upon alternating cheeks: left, right, left. This confuses the Spanish most of all, for whom "besitos" is two kisses.