There are many ways you can provide enrichment for your Siamese cat. Here are a few ideas:

1. Provide plenty of toys: Cats are natural hunters, so providing them with toys that mimic prey can be very enriching. This can include laser pointers, feather toys, and toy mice.
2. Create a scratching post: Scratching is a natural behavior for cats, and providing them with a scratching post will not only keep them from scratching up your furniture, but it will also provide them with mental and physical stimulation.
3. Set up a climbing tree: Cats love to climb and explore, so setting up a climbing tree or shelves for them to perch on can be very enriching.
4. Play with your cat: Interacting with your cat through play can be a great way to bond and provide them with mental and physical stimulation.
5. Provide hiding spots: Cats love to have a place where they can retreat and feel safe. Providing them with a hiding spot, such as a cardboard box or a cozy blanket, can be very enriching.
6. Let your cat go outside (if it is safe to do so): If it is safe to let your cat go outside, it can be very enriching for them to explore the great outdoors. Just be sure to keep an eye on them and make sure they are safe.