Give the person ^ you a present

gives ^ aroll of paper towels to clean up the blood.

gives a dansfloor(those feet must really hurt)

Gives /\ a "We Miss You" card.

Gives ^ a big glowing ball of Cosmic Happiness!

Gives /\ a free ticket to Cave Johnson's tests, where he can remove any tumors you might have. :3

Gives ^ a nice box full of mysterious things. Who knows what you get

Gives /\ a Necroposter liscence.

Gives ^ a "Hello Newbie" cake!

Gives ^ a box full of Subway cookies.

Gives ^ a good old-fashioned JRPG.

Gives ^ a spell-checker for the word License

Gives ^ the fact that: "Context is everything, so sometimes words can be mispelled for a different context."

Gives ^ the key to Aperture laboratory and power up code for GLaDOS.

Gives /\ a free ticket to Disneyland. Adult accompaniment required though.

Gives ^ some wild meat.

Spoiler for:

Ah yes, I forgot. 'Don't feed the animals' 

give ^ some dna data chips and a very expensive and not available around the world n-pad system...

gives ^ a '' expression.

give ^ the alternative universe... and a biggest bag in the alternative alternative universe...

Gives ^ a pat on the back

Gives ^ a 'long time no talk, comrade.' card.

Gives ^ a ton of Rock tokens for a little game called Micro Volts.

give ^ a free smiley SPAM...
  :'( :'( :'( :'( :'( :'( :'( :'( :'( :'( :'( :'( :'( :'( :'( :'( :'( :'( :'( :'( :'( :'( :'( :'( :'( :'( :'(

Gives ^ a SPAM Filter

Gives ^ a shotgun, you'll be killin lotsa zombies :3

Gives ^ a present filled with presents wich are also filled with presents!!