For the guys! What do you do...

I just stay out of the way and keep a low profile. Haha!

hmm...reason is reasonable as i had experience it from girls around me..ZzZ..just try not to irritate her..staying away from her is quite bad i think..she needs support at this time yea?

that's ok. girls do tend to become moody and easy to irritated when they get period. it's because during that time, there are certain temporary changes in their hormonal systems; while our hormonal systems play important roles on how our metabolism runs and it affect our mental condition as well. for instance, if your thyroid gland produces thyroxine more than the needed amount, you tend to get nervous, difficult to sleep, your heart beats faster than usual, and you will be thinner than it should be.
so, yes, that's a reasonable reason, and i understand it. i will try my best not to disturb her. well, it's not reasonable anymore if she is still moody and easy to get irritated when the period is over

I think its normal for girls to be in that mood. Well, theres actually nothing much we can do but to be there for her and comfort her. I myself dont understand why girls become moody when they have their period but i would always be there for her as she had always been there for me. I think if she is experiencing the same and becomes moody i would just hug her tight. hehe. huggiezzzz teddyyy

well... girls are like that... they are moody... and what we can do is to just go with the flow... let them be what ever they feel.... just be a person a fun to be with so that you can also influence the girl and she can change her mood too.... we can try to adjust for the girl but of course the girl must first accept what we are doing..........