Smoochum uses its sensitive lips to identify and examine objects that it sees for the first time, and are kept moist by its daily application of tree sap. This help Smoochum determine if it likes the object or not.

When walking, Smoochum rocks its head back and forth. Smoochum is known to be very curious. This Pokémon is very active and runs about, although it often falls. Being very conscious of its appearance, it will check its reflection when given the chance to make sure it is not dirty. It will bathe the instant its it find any dirt on its face. However, it doesn't mind if its body get dirty. Smoochum is found living in cities and cold caverns. Smoochum is a female-only species, with no male counterpart.