The spleen apparently loves touch. So receiving touch in any way possible is good - hugs, massage, reflexology, all these are ways to strengthen the spleen. The spleen also likes to stretch. Therefore anything that involves stretching is good, as is apparently learning to play again by crawling, rolling around and lying on the floor, especially the ground. Daily structure is good for the spleen - giving yourself time to ground and relax.
The Spleen also dislikes being flooded with too much fluid so it is helpful to drink only a little fluid with meals and have most fluid intake between meals.
Chewing well helps the Spleen to digest, and warms chilled or raw food. Sitting in a relaxed way with an open and untwisted posture aides in healthy digestion of food.