Tossing someone off

I really want to toss my boyfriend off but im not sure how and what position to do it in and also should I take his trousers off wherever (eg.in the park) or leave them on ?
Please help x

you mean give him a hand job?
and if so...not the park
intimate things like that, especially for your first time
are best done in the bedroom or at least somewere private away from other people
it wouldnt be a very attractive thing to be tossing him off in the middle of a park were childrem play.. so try to go somewere more private
it would help if hes either lying down or standing up,
ask him whats more comfortable
and taking off his pants would be easier, you or him can do it
as for tips, heres a great site that demonstrates different hand job techniques
http://www.handjobadvice.com/hand-job-advice-intro.html
but dont rush into it
if you feel like your not ready, comfortable or know all the facts about what your doing, take some time to learn and figure out how you feel
make sure you both want to do it, not just him
and dont do it if you think he needs it or hell dump you or something

Okay first - in the park?
Wait till you two are somewhere private. Anyways as for position it doesn't really make a difference when doing that, and you don't really need to take his bottoms off but you can if you want.