Guys: Why do you not smile back at a girl?

[0202vogue]

Question says it all really! Also, girls: generally when you smile at a guy does he smile back?

[VALEN_tine_ANGEL]

not always. when I meet my female friend, I smile at her. but if there is a girl who I've never met before smiles at me, I don't smile back at her. but when a strange girl comes over me in public place and asks for an address or street, I will answer properly and smile at her after that. especially if she thanks me.

[Shyguy_1988]

Could be nervousness or some guys just don't like to smile. I normally will return a smile unless I'm nervous, busy doing something or caught of guard.

[Konnour]

I'm not very smiley-person, even if I like the girl I see.

I smile only around people I already know well, but not at strangers.

[zagor]

I almost always smile back. But I find when I smile at a girl first, a lot of times they avert their eyes or look away.

[Shpongolia]

He could be having a bad day and has a lot on his mind to even notice a girl smiling at him.

[Anonymous]

if we don't smile back we don't like her or we dont' notice that we aren't smiling.

[Lommelun]

Because putting up a sour face is impolite.

[Anonymous]

Some guys just get nervous