The phrase "Do you think she look good?" is not grammatically correct. The correct version would be "Do you think she looks good?"
The meaning of the phrase is asking someone for their opinion on whether a particular person (female) appears attractive or well-presented.
Here are some possible rephrasings:
- "Do you think she looks nice?"
- "What do you think of how she looks?"
- "Do you think she is pretty?"
- "How do you feel about her


