This
Definition 1 of 4
Pro Tip 1/3
Physical Proximity
Use 'this' for things you can typically reach out and touch. Could you pass me this pen?
Pro Tip 2/3
Emotional Closeness
'This' can show something is special to you, emotionally near. This necklace, my grandmother's, is precious.
Pro Tip 3/3
Speaker's Perspective
Use 'this' to introduce your perspective or argument. This is what I think about the new policy.