okay well first of all I'm a girl. But I've been for many manicures in my lifetime, facials, etc.
so when they do manicure/pedicure they will clean off your hands/feet and then probably trim your cuticles, trim your nails, then probably put a clear coat of nail polish on (since your a male, but if you want them painted go for it).
When you get a facial its really nice! It feels really refreshing. There are many types of facials so they are all different. They are totally worth it though. Your face will probably be a bit red for the next two days, just because its being refreshed.
For a massage they will just get you to lie on a table face-down with your face resting on this little rest. Then they will probably rub some massage oil on your back and ask if there are any spots that have been hurting you lately. You will enjoy it and your back will feel great after!
Tottally go for it, EVERYONE needs a little pampering once in a while
It will reduce the stress in your life and you will feel great!