a good starting point is you providing the make *AND* model of your laptop.
If it is not wireless enabled, here in the UK, you can purchase a usb wireless dongle for around £5 - 6, from ebay or Amazon.
You install the drivers that come with it, *THEN* plug it in.
This will allow connection to a wireless router or similar.
Another method is a dongle from a mobile phone company, but this method can be restrictive and expensive as there are download limits which if exceeded increase costs.
Please advise back on progress.
Good Luck - Keep us posted.