Whenever it is relevant to the conversation, or whenever he is asked about by my friends.

Depends on which friend am I talking to. The friends who know about her get to hear a lot about her.

Often but not in great detail. People have a tendency to affect relationships when they know too many details. Speak positively about your significant other when others are around.

All the time. Our lives are so linked, it's only natural.

i have not think about that, but, most of the time.

I talk about Mark all the time, to friends, co workers, family... hard not to talk about your best friend in conversation.

All the time because he amazes me

All the time :-)

A lot. My friends are happy to hear about him though as they like him very much.

I notice I say this more and more now in casual conversation. :) I try to make sure to bring him up when it's relevant, though, and not just be the girl who is always talking about her boyfriend for no reason. It's important to feel comfortable mentioning it, but also to not overdo it. There needs to be a balance between your own identity, and the identity of "we."

Pretty often

Too much and I enjoy doing it. My woman has me doing things I never did in life before.

Quite a bit, she's the coolest person I know and I like to brag.

Pretty well every conversation

Acabo sempre mencionando, de um jeito ou de outro. Não tem como não mencionar. Mas acho que não exagero