My wife gives awesome hand jobs. She does a lot of different things in various combinations. Some of them:

She doesn't go right for the glans - there is plenty of stroking and massaging of the whole genital area

She throws in a lick or two

She has ample breasts and uses them

Anal play with fingers and/or toys

Lube - usually lots

Mix, shake & stir - then I explode! Sometimes arcing to my chin. She gauges how well she's done be the distance of the arc!

Gunsmoke and others have good ideas. My only advice is keep it low and slow. The longer the play, the more intense the anticipation. Consider having your bf use a metal cock ring for added sensation.

Thanks guys, I think the advice will help.