"I see birds." / "I watch birds." (very different)
"I'm seeing birds." ~ "I'm watching birds." (semantic'ly identical, but the first one is unusual)
"I'll see you home." / "I'll watch you home." (second on is word choice error)
"I see birds." / "I watch birds." (very different)
"I'm seeing birds." ~ "I'm watching birds." (semantic'ly identical, but the first one is unusual)
"I'll see you home." / "I'll watch you home." (second on is word choice error)