Here are some example sentences using my he/him pronouns:
He went to the park.
I went with him.
He brought his frisbee.
At least I think it was his.
He threw the frisbee to himself.
Here are some example sentences using my she/her pronouns:
She went to the park.
I went with her.
She brought her frisbee.
At least I think it was hers.
She threw the frisbee to herself.
Here are some example sentences using my they/them pronouns:
They went to the park.
I went with them.
They brought their frisbee.
At least I think it was theirs.
They threw the frisbee to themselves.