IN A RUSH, don't wait to be spotted, just fill in an order form, they are on the bar,(2 forms "Burger Menu" or "Menu of the Day") mark what you require and pass back to the staff, the "menu of the day" options are on 2 blackboards 1 by the door in Spanish, and usually 1 by the bar in English. If you are not in a rush the staff will serve you at your table, but after the people at the bar have been served. Also please, do not try to rush the toilet flushing, lift the wire slowly, about an inch and wait, do not yank the top off, the instruction are also written on the toilet wall. The toilet pipe that clogs may be replaced when the building is replaced, till then we have to live with horizontal waste pipes.