why i've never win the giveaway ?? ::(( tips and trick ??

go in to low enters giveways (that not alot people go in too)

http://www.steamgifts.com/about/faq

Why have I not won yet?

• Although some users might win on their first entry, others will need to enter a larger number of giveaways before being lucky. If you search for giveaways with a smaller number of entries, such as invite only and group giveaways, you'll have a higher chance of winning.

Your probabilities are = # of copies / # of entries

Thus you should:

• Level up, level restricted GAs have less entries
• Enter private GAs (look for them here on the Discussions and do some Puzzles if you want)
• Enter Steam groups and/or hope to be whitelisted = Group GAs!