You're funnier because you are more in the present moment, with thoughts other than porn, and your mood is likely elevated.
A) Funnier as in happy? Or B) Funnier as in humorous? If it's A, then you're experiencing smaller levels of dopamine from other areas of life than PMO. Since PMO was over saturating your brain with dopamine, and you cut that supply off for x amount of days, then your only source of it comes from your daily experiences in life. You can begin to enjoy the smaller things in life, and laugh at things that don't always have to make sense, it could just be funny to you. If it's B, then you're experiencing an increase in confidence from abstaining from PMO. This makes it easier for you to focus less on yourself and more on others, while making conversations more interesting with jokes. Or, others just feel like they can connect to you better because you're thinking less and talking more. When you think out loud in your brain, only you can hear yourself. People want to have some anticipation in your behavior because it's less dangerous than being present with someone who always changes their mind on things or is indecisive. I also quote it as "less dangerous" because having some control with who you talk to makes people feel safer than not having that control. Or something alone those lines. Good job and keep up the good work!