The quickest way to enter into a conversation with another Sasquatch fan is to announce that you're one too.
People will look at you strangely, if you enter every room and public space with the loud proclamation, 'I love Bigfoot!' So it's much easier to don a Sasquatch t-shirt, which says it all the same.
Then your people can spot you at several paces away. New friends, or simply those with a tale to share, will flock to your side. At the very least, it's an ice-breaker for relative strangers to spark up a conversation.
From the arty to the humorous, the philosophical to the statement of fact, we have Bigfoot t-shirts here to suit all. Though they may not help you with a sighting of your own, they might pave the way to chats with someone who can!