The 23-year-old, yet to pen a new contract extension, feels his killer instinct in front of goal is improving all the time.
"Those are the sort of positions that this season and in the last few seasons I have been quite deadly in," Walcott said.
"When given a little sniff I am able to take it now. The goals [I have scored] show that.
"My general play [is getting better] as well. The assists are coming now, which is fantastic, and I am enjoying my football.
"I am very happy with the way I have started and it has got to continue. Hopefully I will take it into Saturday's game."