The 25-year-old Hampshire bowler, a late call up, impressed on debut while taking four for 104 in the drawn first Test against India at Lord's completed on Monday where the tourists hung on with just one wicket standing before bad light and rain ended the match.

Tremlett, who replaced the injured Matthew Hoggard, is now looking to build on that performance when the second Test gets underway at Trent Bridge here on Friday and rid himself of a reputation for being a gentle giant.

But he insisted aggression need not be synonymous with verbally abusing opposing batsmen and cited Australia quick Clark, a teammate of his at Hampshire, as an example of a bowler who took wickets without having to resort to excessive 'sledging'.

Tremlett said: "You learn things the more you play the game and pick up things from other cricketers. Stuart Clark is a similar character to me off the field, a kind guy, but when he steps on the pitch he has got that mean streak about him.

"It is something I've tried to work on. It is not something that comes naturally to me, to be aggressive and swear at people and I don't think it is something I will do, be extra aggressive and swear at the batsman because that is not my character," he added.

For Tremlett, aggression means "that pumped up feeling to do well and take wickets; you have that mind-set that you don't really like the batsman.

"I've got the attributes, I'm 6ft 7in tall, and it's a question of using those things a little bit better than I have done in the past."

Tremlett, whose career has been hampered by hamstring and back problems, played the last of his 14 one-day internationals in January against New Zealand in Perth where he conceded an expensive 72 runs in his 10 overs.

"It was one of those games where I let myself down a bit. I've had time to reflect, go away and work hard and hopefully I can continue bowling well which I have done this season."

However, Tremlett said being told a few home truths by legendary leg-spinner Warne, his county captain, had helped toughen him up.

"I've been working with Warne for the last three years and I've learnt a lot from him. He said take a look at yourself and where you want to go from here. My goal was to get back in the England side and prove I'm a good bowler and a good cricketer."

Tremlett came close to facing Warne during England's 2005 Ashes series triumph after being the standby bowler for the first four Tests -- when fellow quick Simon Jones was injured for the series finale at The Oval the selectors opted to go for an extra batsman in Paul Collingwood.