What characteristic is common among guests drinking during happy hour?

The characteristic that is commonly associated with guests drinking during happy hour is that they usually have high tolerances. This can often be attributed to individuals who are frequent drinkers, as they have built up a tolerance to alcohol over time. Happy hours attract patrons looking for reduced prices, and those with higher tolerances may be more inclined to participate frequently, enjoying multiple drinks in a social setting.

In contrast, the other options do not accurately reflect typical behavior observed during happy hour. While it's possible that some guests may order food or take their time with drinks, these behaviors can vary widely among individuals and are not defining characteristics associated with the happy hour experience itself. Additionally, many happy hour attendees may take advantage of drink specials and enjoy the social aspect, which could lead to quicker consumption rather than a slow and deliberate approach. Thus, the commonality of high tolerances stands out as the most significant characteristic.