New boss Lambert will address the squad in full for the first time, after they have reported back for pre-season training, since replacing Alex McLeish as manager last month.
Villa only finished two points above the Premier League relegation zone and Lambert is determined to get the best out of the players.
He said: "It's the first day for everyone and it's new and fresh. When a new manager comes in, there is always a bit of trepidation amongst the players about what is going to happen.
"But we are not going to complicate things and hopefully they will respond and, if they do that, then we'll be fine.
"I'm not going to ask them to do anything which is alien to them. I'm going to get them to play to their strengths."
Lambert added: "I'll speak to them as a group and then I might speak to one or two individuals to get a bit of background about what it's been like.
"I think mentality is important in terms of how you handle things and how you deal with players, and hopefully the players will get the same ideas as myself."
Lambert will look to strengthen his squad and Sheffield United right-back Matthew Lowton is believed to be on his radar.
The current first choice right-back, Alan Hutton, struggled to make an impression after his move from Tottenham although, contrary to speculation, he has not been transfer-listed.
Lambert, meanwhile, has recruited Ian Culverhouse and Gary Karsa from previous club Norwich as part of his backroom team.
Culverhouse and Karsa will operate as assistant mananger and head of football operations, respectively, at the midlands club.
The pair have worked with Lambert for the past six years in spells at Wycombe, Colchester and Carrow Road.
Lambert said: "It's great for them to be here at the club and I'm delighted they have joined me.
"They have been with me for the past six years, which is a long time, and we've built up an understanding and a trust.
"I trust them and they have been great for me. We have always bounced well off each other and we're all looking forward to the job at hand here at Villa."