and if you mean in person....that's called socializing(sp)
for me, being all high, looking stupid or dumb, cotton mouth, the giddyness, redeyes...dry nose..making your sound croaky
all that affects socializing with a girl because IMO, when you socialize with a girl, you have to stay on your toes..
be witty.... cause, by nature, girls will doubt you at first...
you have to think fast to make her laugh and.......
im rambling...

hope that helped a little