Blind Stealing and Perception

[prepotency]

Scenario: Local B&M Cigar Club that I was invited to by a friend. STT for like 30 bucks. Not a card player in the place. Just guys messing around for fun. So we can assume that the thought process of the player in this hand is low.

Blinds are 10/20 and your stack is ~150

On the button you get A5s - it folds around to you

In the actual game I did not go all in but I essentially stuck myself by raising to 100. Online I would not typically make this move but I thought it might be necessary here. This is because I thought that if one of the blinds saw me go all-in for so much more than the pot, they would think I was "bluffing." My point is maybe the AT-A6 range would call here. Besides the typical answer of: "well i guess it depends on the people at the table" - what do you think would be your standard raise amount here given the situation you are in.