While we’ve already seen two different trailers for Warner Bros.‘Suicide Squad, we still haven’t seen much ofJared Leto’sThe Joker, who has only surfaced in bits and pieces of footage released thus far.Jared Leto’s off-screen antics while getting into character are already the stuff of legend, with the actor sending bizarre gifts to his cast members, while never breaking character throughout the production, even between takes. Today we have some more insight into the actor’s process in a new interview whereLetoreveals how he honed his iconicJoker laughfor the movie.

Before production began last spring, the actor was touring with his hit rock band30 Seconds to Mars, and videos surfaced of the actor practicing his Joker voice with the crowd. As it turns out,Jared Letoalso practiced his iconic laugh with random passers-by on the streets of New York and Toronto, where filming took place last year. During a new interview on CNBC’s Squawk Box, via YouTube, the actor reveals his unique process for testing out his diabolical laugh.

“I worked on the laugh walking around the streets of New York and Toronto, and I kinda would walk around the streets and see what laugh would get under people’s skin. You know when you hear someone laugh at a restaurant? It’s a little jarring. I tried them out. And I kind of got to a place where I would laugh and people are always turning around like, ‘Who is this creepy guy behind me?'”

This revelation comes just weeks afterJared Letorevealed in a separate interview that he met with experts, doctors, and psychiatrists that dealt with psychopaths, and he also met with some actualderanged killerswho had been institutionalized for their violent crimes. We recently reported that reshoots took place, rumored to add more humor. But it isn’t known ifJared Letowas present for these additional scenes or not. It has been hinted that he spends much of the movie in a jail cell, though he plays a pivotal role in a massive prison riot during the third act.

Suicide Squadhits theaters August 5, going up against The Weinstein Company’sThe Founderand EuropaCorp’sNine Lives.David Ayeris directing from his own screenplay, and there are rumors that the studio wants the director and the main cast to come back forSuicide Squad 2, which would reportedly start shooting next year, and have an R rating. Those details haven’t been confirmed yet, so stay tuned for more onSuicide SquadandSuicide Squad 2. Take a look at the excerpt fromJared Leto’s CNBC interview where he talks about hisJoker transformationbelow.