I agree with someone who said you need to make a sizable bet on the flop - if you know your commited to go all in any way - why not shove all ur chips on the flop in a semi-bluff (u havent hit but have great cards and a nice draw). If he has some low PP or even AK he has too fold or donk; way easier for him to fold here - you dont look like you got A5 or 22 then.