***They met on the Ponte Trinita, *she seeing and calling out to him first.**** I wanted to find out the usage (as I don't know?)
closed as off-topic by Michael Harvey, Nathan Tuggy, user3169, Chenmunka, Eddie Kal Dec 25 '18 at 15:01
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "Questions asking for someone to find and correct errors or improve the phrasing are considered requests for proofreading and are off-topic. Please edit your question to focus on something in particular that you are unsure about; if that's not possible, see websites for proofreading instead." – Michael Harvey, Nathan Tuggy, user3169, Chenmunka, Eddie Kal
You haven't provided much context here, so it's hard to say. Is this formal writing? Is it a part of a narrative?
On the surface, you've shifted tenses; 'met' is past tense but 'seeing' and 'calling' are present progressive tense. The way this is written, 'she seeing and calling out to him first' is a subordinate phrase, and the comma is fine, but if you change it to 'she saw and called out to him first.' then you would need to add a semicolon between the phrases, add 'and' after the comma, or divide it up into two full sentences.
Stylistically, you might consider cutting down to 'she called out to him first' since the 'seeing' is implied in calling out to someone.