If you met the above user at walmart?

[ChappersTeddy]

i would buy the lego set he's in

[Ad Bot]

[Decepticon]

I'd give them a thorough handshake and then have to explain myself while pleading for forgiveness profusely.

[Valkerone]

I'd ask if he could share cheetos with me.

[Plethora]

Greetings, handshake, wish them a good life.

[Block Aloni]

[Lego lad]

$5 says that will show up in my dreams

Ontopic: I would ask to be an SCP at their server 

[BlockoBlocko]

We would just shop and eat something together.

And discuss LEGO. 

[Reindeer]

I would greet him with a warm hello.

[BluetoothBoy]

I would greet him with a warm hello.

...and by warm, I mean 358* K.

[Doughboy]

ignore, grab milk and run

[Dexxtter]

ignore, then wonder why im in this terrible store and go to Target.

[BlockoBlocko]

Kick him in the ass and shove him in a shopping kart.

Then push him out to the street so he could get run over by a 18-wheeler.

[Reindeer]

I would buy him a LEGO set.

[TheKid]

fly across the world

[kidplasma]

Find a small red blanket, use it as a cape. Then walk around mimicking his avatar. Then wonder how I got to a Walmart because I don't have a Walmart down here.