Explanation:

- Option 1: "talked" is not suitable here. The phrase "talked him out" would imply persuading someone not to do something, which doesn't fit the context.

- Option 2: "went" is appropriate in some contexts, but it would need a preposition (e.g., "went out with him"), which is not provided here.

- Option 3: "asked" fits well in the sentence "Since I like him a lot, I asked him out." This means inviting someone to go on a date, aligning perfectly with the context.

- Option 4: "called" implies contacting by phone. While possible in other contexts, it doesn't imply expressing romantic interest.