The Mate tea is a staple in Argentina, Uruguay, South of Brazil, and Paraguay, where you can enjoy the Mate cold (as opposed in the neighbouring countries). Try the Kurupi brand. This can become addictive! In Paraguay, Mate is called Terere and is infused with cold water whereas Paraguay's neigbours use hot water.
You will avoid any mention of the number "108" whenever you are in the company of Paraguayans.
The reason for this goes back to the days of the Dictature, when homosexuality was strongly frowned upon; then one day one of the newspapers outed a list of 108 names, all supposedly practicing homosexuals.
And since then, a "108" is understood to be a homosexual, a practice still opprobrious in ths mainly Roman Catholic country. To the point that when a new car registration system was put in place a few years back, with all cars getting new plate numbers, the first recipients of plates with "108" raised such a stink that the number was removed from use, and you will never see it in a Paraguayan car plate.