[Lancington]

Exercise and/or lower your calorie intake. There's no 'easy' way unfortunately.

[gagaslilmonsteruk]

Cut the alcohol

[mariamah7]

You need to cut out sugary and processed foods. Do cardio exercise. I'd say start off at about three times a week. That's if you're not already doing it. I've been doing this for about four weeks and its working If you're already slim but have a little fat around your belly, try toning exercises for your abs like crunches.

[Lancington]

And just to cut out all the myths that will inevitably get thrown around in this thread, check this out:

http://4chanfit.wikia.com/wiki/Harsh's_Worksheet_(WIP)

A comprehensive guide with all the whats, hows and whys of losing and gaining weight.

[jmlkey]

Eat less. Exercise more.

Stop drinking is also sound advice.

[tamimi]

Fat belly or loose belly?

If it's fat, then exercise more or eat less. It's not rocket science & there's no particular trick to it.

If it's loose belly, maybe sign up to the gym and do some core body exercises. Sit ups are a good exercise to get your tummy structured together.

What the others said is also sound advice: cut the alcohol. Particularly beer, lager, cider etc. Things with a lot of calories in them.

[katehlouise]

You can't choose to lose fat in a certain place.

Exercise and good, healthy eating will help greatly.