How do slow lories defend themselves?

How do you properly take care of slow lories?

Unfortunately there is no way to properly keep a slow lorikeet as a pet.

There are several reasons for this: As nocturnal animals with large eyes, the bright lights of human houses cause pain. Since animals are often on the move, it is unhealthy to be trapped in a tiny cage. Even the tickling behavior you mentioned isn't that cute - a slow Loris raises her arms when scared and tries to defend herself. Even if you don't provide your location, they are unlikely to legally stay where you live as many countries do not allow endangered species to be kept as pets.

Here are some resources on the reality of owning a Slow Loris pet.

The International Animal Rescue Organization has good information on the dangers of possession:

Slow lories have a poisonous bite that is harmful to humans. Usually their teeth are cut off, but when their teeth are still intact, they mix venom, secreted from a gland in their upper arm, with saliva to give off a poisonous bite. This can cause anaphylactic shock and even death in humans.

National Geographic has resources on the cruelty to buying one:

Before [the animals] are sold, most go through a painful process of removing their sharp teeth - and things do not improve from then on. In a 2016 study, researchers at Oxford Brookes University examined a hundred online videos of pet lorries and concluded that all animals were desperate, sick, or exposed to unnatural conditions.

While Slow Loris are adorable animals, and I understand why you would be interested in one that is based on the online videos, it is important to understand that these videos actually show animal neglect and that the Slow Lori is not a good pet. I recommend researching other species instead - there are many wonderful mammals that do well in captivity and whose purchase does not add to the problems associated with the slow trade in loris.