Quoting airbornflght
The best I can do is say go out into the sun for 30 minutes (15 minutes front/15 minutes back) and do that for 3 or 4 days staying out for a bit longer each day. I'd almost bet you'll earn yourself a few shades and make yourself more resistant to burning. That's the best advice I can give.
Spray on tans work, but I'm not a big fan of them just because they are fake and are easy to spot. I prefer the free method. No one has started charging to use the sun (yet..)
I definitely agree with this, your skin composition is genetic, but you can help build up a great deal of resistance and begin to tan by exposing yourself to the suns rays for shorter periods of time. This is why people, before they go on a vacation, will pre-tan at a tanning salon sometimes, so they don't go burning in the sun.
Fake tans are really easy to spot I think. Just got for a few short walks outside.