What can be inferred about JB’s personality from the conversation between Josh and Miss Sweet tea in the poem. Phone conversations. (I sub for JB.)

He is nervous about talking to girls

He does not trust his brother

He does not care about girls

He is overconfident

Based on the information provided in the conversation between Josh and Miss Sweet tea, it can be inferred that JB is nervous about talking to girls. This can be seen as he asks his brother to step in and talk to Miss Sweet Tea instead of doing it himself. There is no mention of his trust or lack thereof in his brother, his level of care or lack thereof about girls, or any indication of overconfidence.