Plants of all kinds are an old standby when it comes to brightening up the atmosphere of a house and making it feel more alive. But sometimes an unresponsive plant is the last thing someone needs when they’re already feeling down. It’s sort of like having a pet that won’t look at you. A ticklish plant curls up and acts real shy when you touch it or blow on it. It’s actually protecting itself, but it’s cuter to project human emotions on it.