While the two women are chatting at the gym counter, the same guy with a blue shirt and a towel over his shoulder enters the area twice during their conversation.
When Coop and Felix are on the bench watching Matt on the ice, the reflection in the glass shows him taking the clapper before he takes it.
Jenna lets Ryan inside from a substantial rain/sleet storm. Even using his umbrella he would not be totally free of wet patches, but he is. As he enters Jenna's home he spins around revealing a dry, spotless jacket and pants.
The poster put up by the dance-team mom for the Winterfest has "performing" misspelled as PEFORMING.
When the power goes out in the house, the time is still displayed on the microwave.
When Coop says he is from Thunder Bay, he says it's in Northern Canada but it's not. It is in Southern Canada in Ontario just NE of the tip of MN.