When you find a tree that calls to you, think about doing this ritual.
Stand so you can see the whole tree. Open yourself up to all your senses and feel your love for the tree. See the shape of its branches. Smell the air around it knowing that you are breathing oxygen the tree has made. Listen to the wind in its leaves.
Feel your love for the tree course through your body, opening up your energy centers. Step toward the tree respectfully, not hurting any of the plants that find shelter under it. Place your body so that as much surface as possible touches the tree. Shape your body to conform to the tree and wrap your arms around it. If the tree is big enough, allow your weight to be supported by it.
Pass your feeling of love and awareness through your body so that the tree can take it if it wants. If you feel yourself being received, stay and become aware of anything the tree wants to give you.
When you're done, thank the tree. You may repeat this as often as feels right, but pay attention to how the tree responds. Some trees like to be left alone, others will happily develop a relationship with you.