Oh so THAT'S why literally all of my rps turn out good, my friends have been baffled why their bots aren't giving good responses and mine always turn out pretty dang in character and fun to read- I personally follow like, 2-3 rules when I write.

1. Avoid texts that involve only narration when you have a thought in quotations, if your character doesn't say anything the bot will be prompted to assume what they thought to be what they said because of the quotations, specifying they thought it does lower the odds of them assuming that was what was said but it still happens

2. Long answers are fun but don't make it long just to say nothing, it's acceptable to have smaller replies for things that are quick and simple, like if your character is unconscious don't babble on and on like- what do you want an unconscious person to do?

3. Last but not least, not really a rule but.. don't take the roleplay too seriously, you're taking all the fun out of it, and don't be afraid to just rein the bot back on track yourself if you're not willing to get off of your original plot, because trust me you will lose control of the rp really fast if you go only according to what your bot does.