Just stick to looking out for fires
Survive through the fourth episode
Prepare the casserole
Put out the fire at the campsite
Notice Silas on night one
First weather report on the computer
Score more than 500 in the zombie mini game
3 consecutive headshots in the zombie mini game
Watch the employee training video
Booting up the computer for the first time (after entering the password)
Receive the tower key from billy
Tip the waitress
Talk to the person in the diner parking lot