there are many ways to put it:

'she walked, 
and all of a sudden,
I forgot everything I ever knew'

'when she walked, 
all the men wished to be 
the ground she walked on, 
and etc. etc.'

'whenever I was near her, 
the wind started blowing, 
and everything was in 
slow motion, and 
it all made sense'

and 
the classic 

'when I saw her, 
I lost myself in 
the most beautiful eyes
I have ever seen'

as a poet,
all I'm going to say is, 
when I saw her, 
I looked into her eyes, 
and it only took a second or two 
before
Elvis Presley started playing 
in my head, 
and 
it was followed by 
an old man in my heart telling me to 
forget her before I 
fell in love, 
but 
every single time he spoke, 
his voice 
died down eventually 
because
this birdie told me,
in the loudest voice ever, 
to
enjoy the moment, 
and 
not screw stuff up.