OSX .inputrc to make terminal way better. and by better i mean i'm naked

.inputrc

# Two escapes clear command line.
"\e\e": "\C-a\C-k"

# Tab to menu complete
"\t": menu-complete

# Incremental searching with Up and Down and Left and Right
"\e[A": history-search-backward
"\e[B": history-search-forward
"\e\e[C": forward-word
"\e\e[D": backward-word

set completion-ignore-case On
set expand-tilde on
set convert-meta off
set input-meta on
set mark-directories on
set output-meta on
set show-all-if-ambiguous on
set visible-stats on
set -o vi

$if Bash
    #do history expansion when space entered
    Space: magic-space
$endif

how do i trigger the expansion ...?